Multigraft copolymers with polyisoprene backbones and polystyrene branches, having multiple regularly spaced branch points, were synthesized by anionic polymerization high vacuum techniques and controlled chlorosilane linking chemistry. (edu.sa)
These copolymers typically are prepared by sequential anionic polymerization or by chemical coupling of linear diblock copolymers. (allindianpatents.com)
Crystalline Carbosilane-Based Block Copolymers: Synthesis by Anionic Polymerization and Morphology Evaluation in the Bulk State. (leibniz-inm.de)
Synthesis and microphase separation of dendrimer-like block copolymers by anionic polymerization strategies. (leibniz-inm.de)
Statistical copolymers2
Linear copolymers consist of a single main chain and include alternating copolymers, statistical copolymers, and block copolymers. (wikipedia.org)
She will be synthesizing statistical copolymers of poly(styrene)-poly(hydroxyethylmethacrylate) and grafting these to silicon substrates. (princeton.edu)
Polymers6
Many or even most synthetic polymers are in fact copolymers, containing about 1-20% of a minority monomer. (wikipedia.org)
The best commercially known class of TPE polymers are the styrenic block copolymers (SBC), typically linear triblock polymers such as styrene-isoprene-styrene and styrene-butadiene-styrene, the latter of which when hydrogenated become essentially styrene-(ethylene-butene)-styrene block copolymers. (allindianpatents.com)
U.S. Patent 5,391,629 describes thermoplastic elastomer compounds comprising tapered and block linear polymers from ethylene and alpha-olefin monomers. (allindianpatents.com)
Study by molecular dynamics simulations of the mechanical and thermal behaviors at the micro and macroscopic scale of the different classes of materials: metals, polymers and ceramics. (insa-lyon.fr)
She will be working with Adam and Will to measure properties of polymers in dilute solutions. (princeton.edu)
176. Sugar-based Polymers with Stereochemistry Dependent Degradability and Mechanical properties . (dovegrouplab.com)
Compositions2
For certain compositions thermoplastic elastomer (TPE) behavior was observed, and in many instances the elongation at break was much higher (2-3X) than that of conventional triblock TPEs. (edu.sa)
These types of copolymers can be useful as thermoplastic elastomer ("TPE") compositions due to the presence of "soft" (elastomeric) blocks connecting "hard" (crystallizable or glassy) blocks. (allindianpatents.com)
Diblock3
This polymer is a "diblock copolymer" because it contains two different chemical blocks. (wikipedia.org)
Diblock copolymers are made using living polymerization techniques, such as atom transfer free radical polymerization (ATRP), reversible addition fragmentation chain transfer (RAFT), ring-opening metathesis polymerization (ROMP), and living cationic or living anionic polymerizations. (wikipedia.org)
Raleigh 's work " Cylinder Orientation and Shear Alignment in Thin Films of Polystyrene-Poly(n-hexyl methacrylate) Diblock Copolymers " was published in Macromolecules . (princeton.edu)
Synthesis2
Bifunctional Carbanionic Synthesis of Fully Bio-Based Triblock Structures Derived from β-Farnesene and ll-Dilactide: Thermoplastic Elastomers. (leibniz-inm.de)
Synthesis of phase-separated super-H-shaped triblock architectures: poly(l-lactide) grafted from telechelic polyisoprene. (leibniz-inm.de)
Poly2
Within the present work, a thermo-responsive ultrafiltration membrane is manufactured based on a polystyrene-block-poly(diethyl acrylamide) block copolymer (BCP). (bsz-bw.de)
The poly(diethyl acrylamide) block segment features a lower critical solution temperature (LCST) in water, similar to the well-known poly(N-isopropylacrylamide), but having increased biocompatibility and without exhibiting a hysteresis of the thermally induced switching behavior. (bsz-bw.de)
Architectures2
It was concluded that the morphology of these complex architectures is governed by the behavior of the corresponding miktoarm star copolymer associated with each branch point (constituting block copolymer), which follows Milner's theoretical treatment for miktoarm stars. (edu.sa)
Branched copolymers consist of a single main chain with one or more polymeric side chains, and can be grafted, star shaped, or have other architectures. (wikipedia.org)
Polymer chemistry1
In polymer chemistry, a copolymer is a polymer derived from more than one species of monomer. (wikipedia.org)
Crystallization2
Adam gave a talk on "Thermoplastic Elastomers with Crystallization-Driven Network Formation from Single-Phase Melts. (princeton.edu)
Rick gave an invited talk on "Crystallizable Block Copolymers: Directing Crystallization via Polymer Architecture" while the students presented posters of their most recent work. (princeton.edu)
Molecular1
Copolymers can be characterized by a variety of techniques such as NMR spectroscopy and size-exclusion chromatography to determine the molecular size, weight, properties, and composition of the material. (wikipedia.org)
Styrene1
Commercial copolymers include acrylonitrile butadiene styrene (ABS), styrene/butadiene co-polymer (SBR), nitrile rubber, styrene-acrylonitrile, styrene-isoprene-styrene (SIS) and ethylene-vinyl acetate, all of which are formed by chain-growth polymerization. (wikipedia.org)
Temperature3
In-Plane Thermoelectric Properties of Flexible and Room-Temperature-Doped Carbon Nanotube Films. (ncsu.edu)
However, when heated above the melt temperature or glass transition temperature of the hard block, the polymer flows readily exhibiting thermoplastic behavior. (allindianpatents.com)
The glass transition temperature (Tg) of the typical SBC TPE is equal to or less than about 80-90°C, thus presenting a limitation on the utility of these copolymers under higher temperature use conditions. (allindianpatents.com)
20233
Ahmadi Soufivand A, Faber J, Hinrichsen J, Budday S, Multilayer 3D bioprinting and complex mechanical properties of alginate-gelatin mesostructures, Sci Rep 13(1) ( 2023 ) 11253. (trr225biofab.de)
Kockelmann J, Zentel R, Nuhn L, Post‐Polymerization Modifications to Prepare Biomedical Nanocarriers with Varying Internal Structures, their Properties and Impact on Protein Corona Formation, Macromolecular Chemistry and Physics doi:10.1002/macp.202300199 ( 2023 ). (trr225biofab.de)
Formation1
Polyacrylonitrile-containing amphiphilic block copolymers: self-assembly and porous membrane formation. (leibniz-inm.de)
Block5
A possible sequence of repeat units A and B in a triblock copolymer might be ~A-A-A-A-A-A-A-B-B-B-B-B-B-B-A-A-A-A-A~. Block copolymers are made up of blocks of different polymerized monomers. (wikipedia.org)
Will presented a poster on "Melt-Miscible Block Copolymers Containing Polyethylene. (princeton.edu)
So Youn 's paper " Large-Area Nanosquare Arrays from Shear-Aligned Block Copolymer Thin Films " was published in Nano Letters . (princeton.edu)
There Raleigh presented on "Factors Influencing Shear Alignment of Cylinder-Forming Block Copolymer Thin Films. (princeton.edu)
Self-Assembly of Polymer-Modified FePt Magnetic Nanoparticles and Block Copolymers. (leibniz-inm.de)
Linear1
Examples are provided of linear thermoplastic elastomers having hard blocks of high density polyethylene or isotactic polypropylene and soft blocks of ethylene-propylene rubber. (allindianpatents.com)
Star1
Radial and star branched SBC copolymers are also well-known. (allindianpatents.com)
Enables1
Tuning the mechanical and optical properties of gelatin-based microparticles enables their use as support bath for suspended extrusion printing, in which features containing high cell densities can be easily introduced. (regenhu.com)
Types1
Since a copolymer consists of at least two types of constituent units (also structural units), copolymers can be classified based on how these units are arranged along the chain. (wikipedia.org)
Made1
Japanese Early Publication H4-337308 (1992) describes what is said to be a polyolefin copolymer product made by polymerizing propylene first so as to form an isotactic polypropylene and then copolymerizing the polypropylene with ethylene and propylene, both polymerizations in the presence of an organoaluminum compound and a silicon-bridged, biscyclopentadienyl zirconium dihalide compound. (allindianpatents.com)
Include1
Examples include the physical blends of thermoplastic olefins ("TPO") such as polypropylene with ethylene-propylene copolymers, and similar blends wherein the ethylene-propylene, or ethylene-propylene-diolefin phase is dynamically vulcanized so as to maintain well dispersed, discrete soft phase particles in a polypropylene matrix. (allindianpatents.com)
Study1
Leah will be working with Raleigh to study the parameters which dictate the thickness of grafted copolymer thin films. (princeton.edu)
Measure1
The "blockiness" of a copolymer is a measure of the adjacency of comonomers vs their statistical distribution. (wikipedia.org)
Dynamic1
Skin-Inspired Capacitive Stress Sensor with Large Dynamic Range via Bilayer Liquid Metal Elastomers. (ncsu.edu)
Pages1
See, N. R. Legge, "Thermoplastic elastomer categories: a comparison of physical properties", ELASTOMERICS, pages 14-20 (Sept. 1991), and references cited therein. (allindianpatents.com)