Phenylisocyanate

Hydroxyl-terminated polybutadiene

Cyanate

Oseltamivir total synthesis

Toluene diisocyanate

Polyurethane

Methiocarb

Carbamic acid

Thiocarboxylic acid

Equivalent weight

Janis Louie

Polymerization

Pseudohalogen

Curtius rearrangement

Polyurea

Nitrogen

NCO

Carbodiimide

Isocyanate

Biuret

Carbamoyl chloride

Functional group

Carbamate

Fulminate

Bioconjugation

Carbonyl group

Index of chemistry articles

Polyol

Azide

Amide

Amide - Simple English Wikipedia, the free encyclopedia

Acute inhalation injury

RNA world

Amine - Simple English Wikipedia, the free encyclopedia

Amine

اتیلن - ویکی‌پدیا، دانشنامهٔ آزاد

Chemical formula

Ester - Simple English Wikipedia, the free encyclopedia

Allyl group

Ester

Alcohol - Simple English Wikipedia, the free encyclopedia

Phenyl group

Beckmann rearrangement

Organolithium reagent

Ether

Azo compound

Building insulation materials

Nitrile - Simple English Wikipedia, the free encyclopedia

Polyurethane

Epoxy

Ketenimine

Thial

Ketone - Simple English Wikipedia, the free encyclopedia

Chemical formula

Molecule

Aldehyde

Polymers23

• It reacts with isocyanates to form polyurethane polymers. (wikipedia.org)
• For repeating units of polymers, functional groups attach to their nonpolar core of carbon atoms and thus add chemical character to carbon chains. (wikipedia.org)
• The reaction between isocyanates and alcohol produces polyurethane polymers which are extensively used in various end-use industries. (industryarc.com)
• Polyurethane polymers are traditionally and most commonly formed by reacting a di- or tri poly- isocyanate with a polyol . (wikipedia.org)
• The utilization of blocked isocyanates for efficient post-polymerization functionalization of different polymers is presented. (rsc.org)
• For this purpose, well-defined polymers obtained by the RAFT polymerization procedure are modified by conversion of the end groups to blocked isocyanates. (rsc.org)
• The blocked isocyanates offer improved stability of functional polymers compared to isocyanate functionalized polymers. (rsc.org)
• 9. A composition according to claim 1 wherein the composition includes at least one additional polymer selected from the group consisting of poly(alkylene-co-alkyl(meth)acrylates), polybutenes, diolefin-derived non-aromatic polymers or copolymers, aromatic group-containing copolymers, epichlorohydrin-containing polymers and poly (ethylene-co-vinyl acetate). (google.co.uk)
• 2. The process of claim 1, wherein the polymer is selected from the group of functional polymers consisting of anhydride, amine, acid, cyanate, isocyanate and hydroxy functionalized polymers. (google.de)
• Isocyanate polymers, also called polyisocyanates, homopolymers, oligomers or prepolymers, are derived from the diisocyanate monomers by self-condensation or reaction with polyols. (nen.nl)
• Hydroxyl groups have utility as hydrogen bonding sites and can provide polymers with compatibility for water or polar solvents. (polysciences.com)
• Polymers containing free -OH groups can be post reacted with acids, epoxies, isocyanates, etc. to create novel polymer properties and architectures. (polysciences.com)
• 1 This review focuses on the overview of the RAFT process, selection of appropriate RAFT agents, and its potential for building tailor-made (block) copolymers, functional polymers, and polymers with a wide range of biological recognition. (sigmaaldrich.com)
• The FTIR and TGA coupled with differential thermogravimetric (DTG) results showed that higher molecular weight of PF resins not only promoted the reaction of isocyanate and PF co-polymer system, but also resulted in a better thermal property of prepared co-polymers. (ncsu.edu)
• Among these polymers, isocyanate resin, known as methylene diphenyl diisocyanate (MDI), which is also an important binder used in the woodworking industry, has the highest potential to react with PF resin. (ncsu.edu)
• Phenolic resin contains a high amount of hydroxyl groups which can interact with other polymers. (ncsu.edu)
• Polyurethane polymers are formed by combining two bi or higher functional monomers. (niir.org)
• Polyester is a category of polymers which contain the ester functional group in their main chain. (niir.org)
• Polyurethanes are linear polymers that have a molecular backbone containing carbamate groups (-NHCO2). (madehow.com)
• The synthesis of urethane polymers is based on the isocyanate reactions. (springeropen.com)
• A large variety of branched or crosslinked polymers may be obtained by adjusting the functionality of the isocyanate or hydroxyl-containing reactant [ 7 ]. (springeropen.com)
• So, in the last few decades many research groups have been investigating on the preparation of new polymers, analogous to the more significant technical polymers, but based on monomers synthesized from natural and available sugars [ 3 ]. (intechopen.com)
• The diisocyanate monomers are important commercially the most important aromatic isocyanates, because the two NCO groups allow them to undergo direct whereas 1,6-HDI, isophorone diisocyanate (IPDI), methyle- polymerization reactions with alcohols to form polyur- nedicyclohexyl diisocyanate (HMDI), and their higher ethanes, in addition to enabling prepolymerization reactions polymers are the most important aliphatic isocyanates. (cdc.gov)

Amine11

• If there is another functional group at a carbon, it may be named with the Greek letter, e.g., the gamma-amine in gamma-aminobutyric acid is on the third carbon of the carbon chain attached to the carboxylic acid group. (wikipedia.org)
• An amine and/or hydroxyl functionality on the substrate surface is reacted with an isocyanate group at an end of the hydrophilic spacer to bond the spacer to the substrate, and the bio-active material is reacted with an isocyanate group at another end of the spacer to bond the bio-active material to the spacer. (google.co.uk)
• 10. The method of claims 1-8 wherein the functional group of the silane is selected from amine, isocyanate, or (meth)acrylate. (sumobrain.com)
• b) It was not accepted that the compounds of D1 in general were used for the manufacture of polyurea products, since any mention of secondary amine terminated polyethers in D1 referred only to a first step, in which an amine functional compound was reacted with an excess of a polyisocyanate to form an isocyanate-terminated prepolymer or quasi- prepolymer. (epo.org)
• Amine-reactive chemical groups in biomolecular probes for labeling and crosslinking primary amines include NHS esters (N-hydroxysuccinimide esters) and imidoesters. (thermofisher.com)
• However, NHS esters and imidoesters are the most popular amine-specific functional groups that are incorporated into reagents for protein crosslinking and labeling. (thermofisher.com)
• Selected amine-reactive chemical groups. (thermofisher.com)
• P represents a protein or other molecule that contains the target functional group (i.e., primary amine). (thermofisher.com)
• The method [A] includes the initial annulation by intramolecular amine-nucleophilic addition to the carbodiimide-cumulene carbon, followed by the second cyclization by reacting a group of newly formed amine with an inner functional group arranged. (nii.ac.jp)
• Amine is a group of basic organic compounds derived from ammonia (NH 3 ) by replacement of one (primary amines), two (secondary amines), or three (tertiary amines) hydrogen atoms by alkyl, aryl groups or organic radicals. (chemicalland21.com)
• Bioconjugate chemistry may occur through the C- and N-terminals of each polypeptide chain, the carboxylate groups of aspartic and glutamic acids, the ϵ-amine of lysine, the guanidino group of arginine, the sulfhydryl group of cysteine, the phenolate ring of tyrosine, the indol ring of tryptophan, the thioether of methionine, and the imidazole ring of histidine. (biosyn.com)

Polymeric7

• 2. The method of claim 1, further comprising the step of catalyzing the reaction of said reactive functionality of said bio-compatible polymeric substrate with said at least one reactive isocyanate functional group at said first end of said hydrophilic spacer in the presence of dibutyltindilaurate. (google.co.uk)
• Polymeric release agents having functional groups such as carboxy, hydroxy, epoxy, amino, isocyanate, thioether or mercapto groups are applied to a heated fuser member in an electrostatic reproducing apparatus to form thereon a thermally stable, renewable, self-cleaning layer having excellent toner release. (google.com.au)
• The functional polymeric fluids interact with the fuser member in such a manner as to form a thin, thermally stable interfacial barrier at the surface of the fuser member while leaving an outer film or layer of unreacted release fluid. (google.com.au)
• The present invention relates to a process for producing postcrosslinked water-absorbing polymeric formations, comprising the steps of contacting water-absorbing polymeric formations P1 obtained by polymerization of ethylenically unsaturated acid-functional monomers or salts thereof in the presence of. (google.es)
• 23 . The process of claim 19 , wherein said water-absorbing polymeric formations P 1 are obtained by polymerization of ethyhlenically unsaturated acid-functional monomers or salts thereof in the presence of triallyl isocyanurate as crosslinker. (google.es)
• Cambond have pioneered a new process based on the discovery that biomass such as algae and Distiller's Dry Grains and Solubles (DDGS) , can be crosslinked by isocyanate-containing crosslinking agents, to form a water resistant polymeric network. (cam.ac.uk)
• The most widely used isocyanates employed in polyurethane production are toluene diisocyanate (TDI) and polymeric isocyanate (PMDI). (madehow.com)

Monomers6

• His research concerned the synthesis and reactivity of Group 4 metal complexes, bearing NHC ligands, for the ring-opening polymerization of cyclic polar monomers. (rsc.org)
• Monomers containing a single isocyanate moiety (e.g. methyl isocyanate, ethyl isocyanate, phenyl isocyanate, hexyl isocyanate) are produced during thermal degradation of polyurethanes, i.e. flame bonding and laser cutting. (nen.nl)
• The Z group (in red) dictates which types of monomers can be effectively controlled. (sigmaaldrich.com)
• In this type of chemical reaction, the monomers that are present contain reacting end groups. (madehow.com)
• These groups react further with other monomers to form a larger, longer molecule. (madehow.com)
• Isocyanates are classified based on the number of N=C=O more aromatic rings) or saturated (aliphatic and alicyclic), groups in the molecule into monoisocyanates (one NCO), the term aliphatic isocyanate referring to saturated isocya- diisocyanate monomers (two NCO), or polyisocyanates nates. (cdc.gov)

Highly reactive chemicals3

• Isocyanates are highly reactive chemicals containing functional group isocyanate and are produced by treating amines with phosgene. (industryarc.com)
• Isocyanates are highly reactive chemicals containing the functional group -N=C=O. The reaction of an isocyanate with an alcohol yields a urethane. (springeropen.com)
• Isocyanates are highly reactive chemicals of low- products of even greater complexity. (cdc.gov)

Polyurethanes8

• Chemically, polyurethanes are products of an addition reaction of a polyol and a (poly)isocyanate, respectively, and it can be considered as phase separated polymer blends which consist of alternating hard and soft segments linked to each other by different chemical as well as physical interaction means ( Petrovic and Ferguson, 1991 ). (frontiersin.org)
• Both the isocyanates and polyols used to make polyurethanes contain, on average, two or more functional groups per molecule. (wikipedia.org)
• For example, in coating applications, isocyanates are typically reacted with polyols to form polyurethanes , or with primary and secondary amines to form polyureas . (adhesivesmag.com)
• Polyurethanes are characterized by carbamate groups (-NHCO 2 ) in their molecular backbone. (madehow.com)
• Polyurethanes that have important commercial uses typically contain other functional groups in the molecule including esters, ethers, amides, or urea groups. (madehow.com)
• AB]‐Polyurethanes from 1‐deoxy‐1‐isocyanate‐2,3:4,5‐di‐O‐isopropylidene‐D‐galactitol. (intechopen.com)
• Functional polyurethanes prepared by click reactions on O‐allyl polyurethanes. (intechopen.com)
• Isocyanates may be reacted with polyols to form polyurethanes. (justia.com)

Amines10

• Characteristic of other isocyanates, it reacts with amines to give ureas. (wikipedia.org)
• A catalyst-free N-tert -butyloxycarbonylation of amines in water gives N-t -Boc derivatives chemoselectively without any side products (such as isocyanate, urea, N,N -di- t -Boc). (organic-chemistry.org)
• A simple and efficient protection procedure is general and regioselective for the preparation of mono- N -Boc, N -Cbz, N -Fmoc or N -Alloc aromatic amines in high yield without affecting aliphatic amino groups and other functionalities. (organic-chemistry.org)
• New, stable amino-protecting reagents, Boc-DMT and Fmoc-DMT, were prepared, and found to be useful for the introduction of Boc and Fmoc groups into amines. (organic-chemistry.org)
• The reproducibility of the electronic transport measurements obtained gives an idea of ​​the formation of a stable metal-molecule bond and geometrically better defined than when other functional groups of anchorage more widely studied such as thiols, amines, pyridines or isocyanates are used. (icmab.es)
• Soluble synthetic resins which are free from monomeric amines and have NH bonds are of considerable industrial interest as crosslinkable binders for coatings and impregnations since systems which can be dilutedwith water can be built up by salt formation of the basic functional groups, and furthermore the high reactivity of the NH bonds is available for crosslinking reactions. (patentgenius.com)
• The simplest, most common and versatile techniques for crosslinking or labeling peptides and proteins such as antibodies involve the use of chemical groups that react with primary amines (-NH2). (thermofisher.com)
• In fact, there are numerous synthetic chemical groups that will form chemical bonds with primary amines. (thermofisher.com)
• In substitutive nomenclature, the prefix 'amino-' is placed before the name of the parent compound to denote the functional group in high molecular amines. (chemicalland21.com)
• Primary amines contain the functional group -NH 2 (called amino group) and are converted into secondary and tertiary amines if heated with alkyl or aryl iodides. (chemicalland21.com)

Methylene Diphenyl Dii2

• Methylene Diphenyl Diisocyanate (MDI) is the market leader among all types of isocyanates, owing to its higher usage in refrigerators, freezers and for manufacturing seats & vehicle interiors. (industryarc.com)
• Two aromatic isocyanates are widely produced commercially, namely, toluene diisocyanate (TDI) and methylene diphenyl diisocyanate (MDI). (justia.com)

Methyl isocyanate1

• Further, collision-induced dissociation produced the loss of nitrogen (N 2 ) and methylsulfonyl and methyl isocyanate moieties. (aspetjournals.org)

Molecule16

• The molecule consists of a phenyl ring attached to the isocyanate functional group. (wikipedia.org)
• The same functional group will undergo the same or similar chemical reaction(s) regardless of the size of the molecule it is a part of. (wikipedia.org)
• The atoms of functional groups are linked to each other and to the rest of the molecule by covalent bonds . (wikipedia.org)
• Functional groups can also be charged, e.g. in carboxylate salts (-COO − ), which turns the molecule into a polyatomic ion or a complex ion . (wikipedia.org)
• In organic chemistry functional groups are submolecular structural motifs, characterized by specific elemental composition and connectivity, that confer reactivity upon the molecule that contains them. (fact-index.com)
• The non-hydrogen atoms of functional groups are always associated with each by covalent bonds , as well as with the rest of the molecule. (fact-index.com)
• When the group of atoms is associated with the rest of the molecule primarily by ionic forces, the group is referred to more properly as a polyatomic ion or complex ion . (fact-index.com)
• Thus an atom such as a chlorine atom, -Cl, or a group of atoms such as the alcohol group, -OH, on one end of a molecule will behave chemically in the same way almost without regard to the molecule to which it is covalently attached. (3rd1000.com)
• The idea of different independent or semi-independent atoms or groups of atoms on the same molecule is central to our modern understanding of organic chemistry. (3rd1000.com)
• 4. The method of claim 2 wherein the functional group is mercapto and the concentration of mercapto functional groups is from about 0.2 functional group per molecule to about 2 functional groups per molecule. (google.com.au)
• Functional group of an alcohol molecule. (newworldencyclopedia.org)
• This protocol describes a robust method for the covalent capture of small molecules with diverse reactive functional groups in microarray format, and outlines a procedure for probing small-molecule microarrays (SMMs) with proteins of interest. (broadinstitute.org)
• A group of researchers from the NANOMOL group at ICMAB-CSIC has studied the behavior of an organic radical as a molecular cable formed through the covalent carbon-gold bond between the molecule and the electrodes . (icmab.es)
• The studied molecule has two terminal alkyne groups that promote the linkage to gold electrodes through the formation of a covalent carbon-gold bond. (icmab.es)
• Has one isocyanate group and two acrylic groups in one molecule, ensuring higher performance including higher UV curing speed, stronger adhesion to a substrate and less shrinkage at the curing. (chembridge.com.tw)
• Generally, they consist of a primary long-chain backbone molecule with attached side groups. (madehow.com)

Reactivity7

• The reactivity is implied, amongst others, by the electron affinity of the isocyanate moiety. (frontiersin.org)
• Herein, we investigate the reactivity of Kraft lignin modified with different commercially used isocyanates in the reaction with conventional polyols. (frontiersin.org)
• This work gives rise to a better understanding of the effect of the reactivity and isocyanate structure linked to Kraft lignin on the polyurethane formation and enables rational choice of the isocyanate for pre-functionalization of lignin to prepare materials with better mechanical performance. (frontiersin.org)
• Furthermore, the reactivity of a functional group can be modified by other functional groups nearby. (wikipedia.org)
• Although alcohols (including phenols such as tyrosine and the hydroxyl groups in serine, threonine, sterols and carbohydrates) are abundant in biomolecules, their chemical reactivity in aqueous solution is extremely low. (thermofisher.com)
• Due to the chemical reactivity of the isocyanate functional group diisocyanates will seek nucleophiles at the point of deposition, and e.g. the lung contains a relatively high level of non-protein sulfhydryl groups such as glutathione as well as proteins with accessible -SH, -OH, -NH and -COOH groups for interaction with the isocyanate functional group (Wisnewski et al. (europa.eu)
• CoIII(TBDAP)(O2)]+, TBDAP = N,N-ditert-butyl-2,11-diaza[3.2,6)-pyridinophane) that exhibits dioxygenase-like reactivity to activate nitriles, a density functional theory (DFT) mechanistic study has been carried out to understand how the peroxo ligand is broken to activate nitriles. (bvsalud.org)

Diisocyanates1

• In addition aliphatic isocyanates such as hexamethylene diisocyanates are also widely produced and used in special applications such as abrasion and UV resistant coatings. (justia.com)

Isothiocyanates1

• Pseudohalides are the univalent anions (or functional groups) which form hydracids with hydrogen and form insoluble salts with Ag(Silver) such as cyanides, cyanates, isocyanates, rhodanides (i.e. thiocyanates and isothiocyanates), selenocyanogens, tellurorhodanides and azides. (wikipedia.org)

Reaction of isocyanate1

• A reaction of isocyanate and polyhydric alcohol can form polyurethane (PU). (mdpi.com)

Urea4

• The clear ink carrier composition can be a fatty amide-based material and/or a combination of isocyanate-derived resins in which the order of addition of the isocyanate and the different nucleophiles can tailor the distribution of di-urethane, mixed urethane/urea, and/or di-urea molecules in the final resin product. (google.com.au)
• 9. The phase change ink composition of claim 8 further comprising the at least one alcohol in the mixed urethane/urea resin is selected from the group of alcohols consisting of a monohydric aliphatic alcohol, a monohydric aromatic alcohol, a monohydric aliphatic/aromatic alcohol, a monohydric fused ring alcohol, and a polyol and mixtures thereof. (google.com.au)
• 10. The phase change ink composition of claim 9 further comprising the alcohol in the mixed urethane/urea resin is selected from the group consisting of hydroabietyl alcohol, octylphenol ethoxylate and octadecyl alcohol. (google.com.au)
• The order of addition of the isocyanate and the different nucleophiles can tailor the distribution of di-urethane and mixed urethane/urea molecules in the final resin product. (justia.com)

Polyol2

• PU foams were synthesized with two types of isocyanates: diphenyl-methane-diisocyanate (MDI) and toluene-diisocyanate (TDI), which were mixed separately with polyol and keratin in order to study their effect on the membrane microstructure. (thefreelibrary.com)
• These groups, called urethane, are produced through a chemical reaction between a diisocyanate and a polyol. (madehow.com)

Diisocyanate3

• For testing of adhesives emissions mainly toluene diisocyanate (TDI) and methylene bis (4-phenyl isocyanate) (4,4-diisocyanato-diphenylmethane, MDI) are of concern. (nen.nl)
• The method as described in this PreStandard can be used for other isocyanates too, such as isophorone diisocyanate (IPDI) and 1,6-hexamethylene diisocyanate (HDI) - see ISO 16702. (nen.nl)
• Furthermore, isocyanate functional groups in Toluene Diisocyanate form urethane, when it reacts with hydroxyl. (alliedmarketresearch.com)

Moiety1

• Benzyl acetate has an ester functional group (in red), an acetyl moiety (circled with dark green) and a benzyloxy moiety (circled with light orange). (wikipedia.org)

Free isocyanate1

• Of these components, water is a particular concern in polyurethane systems because it can deactivate catalysts by hydrolysis, and can react with free isocyanate to eventually form polyurea with a carbon dioxide (CO 2 ) byproduct (gassing). (adhesivesmag.com)

Reacts1

• The isocyanate group reacts with the hydroxyl functional group to form a urethane linkage. (chemicalland21.com)

Resin4

• The most common method of classification for coatings is generic type, which refers to the chemical attribute- most often the resin type-that is unique to a group of coatings. (scribd.com)
• The isocyanate-derived resin materials are useful as ingredients as phase change ink carrier compositions used to make phase change ink jet inks. (justia.com)
• Both PF resins and isocyanate resin can be obtained from other sources. (ncsu.edu)
• Published unexamined Japanese Patent Application No. (hereinafter referred to as JP-A) 2000-171990 discloses a photoreceptor having a resin layer including a hardened siloxane resin having a charge transport group, which has a three-dimensional network structure. (patent-de.com)

Urethane3

• Urethane has the functional group R1-O-(CO) NR2-R3. (differencebetween.net)
• 1.Urethane has the functional group R1-O-(CO) NR2-R3 and polyurethane is the chain of the urethane organic groups. (differencebetween.net)
• Urethane resins are made by reacting selected nucleophiles, such as alcohols including a hydroxyl containing toughening agent, with an isocyanate. (justia.com)

Alcohols1

• Common names for alcohols usually start with the name of the corresponding alkyl group followed by the word "alcohol. (newworldencyclopedia.org)

Total reactive1

• Administration (OSHA) standard has been established for total reactive isocyanate group. (cdc.gov)

Colorants1

• Colored waxes are made by reacting selected nucleophiles, including alcohol containing colorants with an isocyanate are disclosed. (google.com.au)

Chemicals1

• Aniline is used as an intermediate in many different fields of applications, such as isocyanates, rubber processing chemicals, dyes and pigments, agricultural chemicals and pharmaceuticals. (nii.ac.jp)

Poly5

• A preferred spacer is an isocyanate end-blocked poly(ethylene oxide). (google.co.uk)
• We have previously reported that star shaped poly(ethylene oxide-stat-propylene oxide) macromers with 80% EO content and isocyanate functional groups at the distal ends [NCO-sP(EO-stat-PO)] can be used to generate coatings that are non-adhesive but easily functionalized for specific cell adhesion. (sigmaaldrich.com)
• Engineering polyesters, such as poly (ethylene terephthalate) (PET) and poly (butylene terephthalate) (PBT), constitute a group of engineering thermoplastics. (intechopen.com)
• However, this group is now expanded by new members of the polyester family, that is, poly (trimethylene terephthalate) (PTT) and poly (ethylene‐2, 6‐naphthalate) (PEN). (intechopen.com)
• The use of water-dispersible poly-isocyanates as a crosslinking component of 2K PUD for floor coating applications is a somewhat newer technology that is growing in popularity. (pcimag.com)

Alcohol5

• and optionally a polymer selected from the group consisting of polyethylene oxide, polyvinyl pyrrolidone, polyvinyl alcohol, polyethylene glycol, and polyacrylic acid. (google.es)
• An Alcohol functional group is a hydroxyl group bonded to an sp hybridized carbon. (3rd1000.com)
• or isopropyl alcohol, if the hydroxyl group is bonded to the second carbon atom on the propane chain. (newworldencyclopedia.org)
• De-blocking of the isocyanate-phenol/alcohol conjugates takes place during the heating phase of wood composite manufacture creating strong wood-wood bonds (adhesion). (cam.ac.uk)
• The first step of this reaction results in the chemical linking of the two molecules leaving a reactive alcohol (OH) on one side and a reactive isocyanate (NCO) on the other. (madehow.com)

Synthesis5

• In organic synthesis , functional group interconversion is one of the basic types of transformations. (wikipedia.org)
• He has been awarded an Imperial-CSC scholarship (2013-2016) and his PhD research focuses on the design and synthesis of functional block copolyesters, using a combination of ring-opening polymerization and ring-opening copolymerization methods. (rsc.org)
• He joined the Williams research group in 2012, working on the synthesis of new catalysts for ROCOP (CO 2 -epoxide and epoxide-anhydride) and developing the new switch catalysis. (rsc.org)
• A vapor-catalyzed, isocyanate-mediated surface immobilization scheme is used to attach bioactive small molecules, natural products and small molecules derived from diversity-oriented synthesis pathways. (broadinstitute.org)
• Price does not include the cost of biopolymer synthesis and, if deemed necessary, biopolymer modification to introduce additional functional groups, extra linkers, and/or spacers. (biosyn.com)

Toluene1

• TDI is produced by chemically adding nitrogen groups on toluene, reacting these with hydrogen to produce a diamine, and separating the undesired isomers. (madehow.com)

Polyisocyanates3

• Background Determination of polyisocyanates is important because they are a major contributor of exposure to the isocyanate functional group in many workplace environments and are capable of inducing sensitization and asthma. (cdc.gov)
• However, with multiple different measurement metrics in use, comparison of isocyanate exposure data between studies and development of occupational exposure limits (OELs) for polyisocyanates is difficult. (cdc.gov)
• Results This analysis supports a need for standardization of isocyanate measurement metrics and provides a framework for the development of an OEL for polyisocyanates. (cdc.gov)

Molecular4

• Robust Organic Radical Molecular Junctions Using Acetylene Terminated Groups for C-Au Bond Formation. (icmab.es)
• Much of the research aims to develop a molecular-level understanding in these systems, and hence the group uses of a variety of molecular probes. (stanford.edu)
• Systems currently under study in the group include functionalization of semiconductor surfaces, mechanisms and control of atomic layer deposition, molecular layer deposition, nanoscale materials for light absorption, interface engineering in photovoltaics, catalyst and electrocatalyst deposition. (stanford.edu)
• molecular weight containing the functional group -N=C=O. (cdc.gov)

Hydroxyl group1

• This product consists of oligomeric units typically containing 40-50 butadiene molecules bonded together, with each end of the chain terminated with a hydroxyl [OH] group: R-45HTLO has a functionality of 2.4-2.6, which means that there is (approximately) one additional hydroxyl group located along the chain for every two oligomeric units. (wikipedia.org)

Silane1

• Adhesion promoter 3-Isocyanatopropyltrimethoxysilane CAS15396-00-6 CFS-006, 3-Isocyanatopropyltrimethoxysilane is a functional silane with an isocyanate group. (xpandrally.com)

Aryl1

• The haloalkanes have the general formula R-X where R- represents some alkyl or aryl group and -X represents one of the members of the halogen family: fluorine, chlorine, bromine and/or iodine. (3rd1000.com)

Salts1

• Among the most common catalyst deactivating components in typical polyurethane formulations are water (hydrolysis), pigment (absorption), solvents (solubility) and acid groups (formation of inactive salts). (adhesivesmag.com)

Molecules4

• Plus, when functional groups are more electronegative than atoms they attach to, the functional groups will become polar, and the otherwise nonpolar molecules containing these functional groups become polar and so become soluble in some aqueous environment. (wikipedia.org)
• Functional groups are attached to the carbon backbone of organic molecules. (3rd1000.com)
• and as functional groups in organic molecules, such as the nitrile group. (wikipedia.org)
• Isocyanates are molecules characterized by N═C═O functional groups. (justia.com)

Phenol2

• Another method for modifying tyrosine groups in peptides is to convert the phenol group in tyrosine residues to a salicylaldehyde derivative, and then to react the salicylaldehyde with 1,2-diamino-4,5-dimethoxybenzene ( D1463 , Reagents for Modifying Aldehydes and Ketones-Section 3.3 ) to form a fluorescent benzimidazole. (thermofisher.com)
• The isocyanate functional groups are blocked by natural phenol groups in algae or hydroxyl groups from the biomass protecting the isocyanate activities. (cam.ac.uk)

Stability1

• For chemical functionalization, the results depended on the stability of the functional groups. (utwente.nl)

Nucleophiles1

• The Boc group is stable towards most nucleophiles and bases. (organic-chemistry.org)