Toughening of a Soft Polar Polythiophene through Copolymerization with Hard Urethane Segments
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DOI: 10.1002/advs.202002778
Abstract: Abstract Polar polythiophenes with oligoethylene glycol side chains are exceedingly soft materials. A low glass transition temperature and low degree of crystallinity prevents their use as a bulk material. The synthesis of a copolymer comprising… read more here.
Keywords: hard urethane; toughening soft; urethane segments; copolymerization ... See more keywords
Tunable thermal degradation and refractive index of poly(norbornene sulfone)s via two different polymerization methods
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DOI: 10.1002/app.44534
Abstract: A novel polysulfone was easily synthesized by alternating copolymerization of norbornene with sulfur dioxide (SO2) via free radical copolymerization and coordination copolymerization. Compared with other olefin derivatives, norbornene is a cyclic olefin having a larger… read more here.
Keywords: different polymerization; polymerization; norbornene sulfone; copolymerization ... See more keywords
Adhesion control of interface between cellulose and polypropylene by vapor‐phase assisted surface copolymerization
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.45647
Abstract: In order to achieve the effective interface bonding between biomass microfiller and commodity plastics, consecutive copolymerization of hydrophilic acrylic acid (AA) and hydrophobic butyl acrylate (BA) using vapor-phase assisted surface polymerization (VASP) technology was applied… read more here.
Keywords: surface; assisted surface; phase assisted; vapor phase ... See more keywords
Aluminum triflate-cocatalyzed radical copolymerization of styrene and ethyl acrylate
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DOI: 10.1007/s00289-019-02847-3
Abstract: Various random copolymers, poly(styrene- co -ethyl acrylate), were synthesized by free radical bulk copolymerization cocatalyzed by aluminum triflate (Al(OTf) 3 ). The experimental conditions for the polymerization reactions, which include the amount of cocatalyst, polymerization… read more here.
Keywords: aluminum triflate; styrene ethyl; copolymerization; ethyl acrylate ... See more keywords
Structural and functional modification of cellulose nanofibrils using graft copolymerization with glycidyl methacrylate by Fe2+–thiourea dioxide–H2O2 redox system
Sign Up to like & getrecommendations! Published in 2019 at "Cellulose"
DOI: 10.1007/s10570-019-02411-2
Abstract: To graft epoxy and ester functional groups onto cellulose nanofibrils (CNFs) and to overcome their poor hydrophobicity, we studied the modification of CNFs using graft copolymerization with glycidyl methacrylate (GMA) by a Fe2+–thiourea dioxide–H2O2 initiator… read more here.
Keywords: system; h2o2; copolymerization; graft copolymerization ... See more keywords
Copolymerization of azide-containing carbonate with lactide and post functionalization
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DOI: 10.1007/s10965-020-02117-1
Abstract: The intention of this work was to study the polymerization of a cyclic carbonate monomer bearing one azido group, i.e. 2-(azidemethyl)-2-methyltrimethylene carbonate (AMTC), to disclose the characteristics of the resulted polymers and to explore the… read more here.
Keywords: reaction; post functionalization; copolymerization; carbonate ... See more keywords
Polymerization with Borane Chemistry. Tributylborane/p-Quinone System as a New Method of Reversible-Deactivation Radical Copolymerization for Styrene and Methyl Acrylate
Sign Up to like & getrecommendations! Published in 2020 at "Macromolecular Research"
DOI: 10.1007/s13233-020-8111-3
Abstract: We report a reversible-deactivation radical copolymerization of styrene and methyl acrylate in the presence of tributylborane and different p-quinones. p-Quinones, such as 1,4-naphthoquinone, 2,3-dimethyl-1,4-benzoquinone, 2,5-ditert-1,4-butylbenzoquinone, and duroquinone, with addition of a catalytic amount of tributylborane,… read more here.
Keywords: styrene methyl; chemistry; copolymerization; methyl acrylate ... See more keywords
An automated recipe generator for semi-batch solution radical copolymerization via comprehensive stochastic modeling and derivative-free algorithms
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DOI: 10.1016/j.cej.2020.127920
Abstract: Abstract Knowledge of the average composition and molecular weights of copolymers containing functional groups is often not enough to ensure product quality, as the distribution of the reactive moieties among the chains affects performance. This… read more here.
Keywords: semi batch; time; solution; copolymerization ... See more keywords
Ring-opening alternating copolymerization of epichlorohydrin and cyclic anhydrides using single- and two-component metal-free catalysts
Sign Up to like & getrecommendations! Published in 2020 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2020.109820
Abstract: Abstract Epichlorohydrin (ECH), a chloromethyl-carrying epoxide, is subject to alcohol-initiated ring-opening copolymerization with cyclic anhydrides using a mild phosphazene base (t-BuP1) or a Lewis pair comprising t-BuP1 and triethylborane as an organic/metal-free catalyst. The products… read more here.
Keywords: ring opening; component; molar mass; copolymerization ... See more keywords
Degradable PE-Based Copolymer with Controlled Ester Structure Incorporation by Cobalt-Mediated Radical Copolymerization under Mild Condition
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DOI: 10.1016/j.isci.2020.100904
Abstract: Summary Polyethylene (PE) is one of the most widely used materials in the world, but it is virtually undegradable and quickly accumulates in nature, which may contaminate the environment. We utilized the cobalt-mediated radical copolymerization… read more here.
Keywords: based copolymer; ester; cobalt mediated; copolymerization ... See more keywords
Synthesis of polyglycolic acid copolymers from cationic copolymerization of C1 feedstocks and long chain epoxides
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Saudi Chemical Society"
DOI: 10.1016/j.jscs.2019.01.008
Abstract: Abstract Polyglycolic acid (PGA), which is an important biodegradable polymer, can traditionally be synthesized through the ring opening polymerization of glycolide (with mostly using tin octanoate catalyst). Our previous studies revealed that PGA was alternatively… read more here.
Keywords: chain; polyglycolic acid; pga; pga homopolymer ... See more keywords