نتایج جستجو برای: raft polymerization

تعداد نتایج: 35557  

2017
Amy A. Cockram Thomas J. Neal Matthew J. Derry Oleksandr O. Mykhaylyk Neal S. J. Williams Martin W. Murray Simon N. Emmett Steven P. Armes

Polymerization-induced self-assembly (PISA) has become a widely used technique for the rational design of diblock copolymer nano-objects in concentrated aqueous solution. Depending on the specific PISA formulation, reversible addition-fragmentation chain transfer (RAFT) aqueous dispersion polymerization typically provides straightforward access to either spheres, worms, or vesicles. In contrast...

Journal: :Colloid and Polymer Science 2022

Abstract We describe a simplified method to synthesize film forming polymer Janus particles by phase separation during RAFT-based free radical emulsion polymerization. Fully crosslinked snowman- or football-shaped polystyrene (PSJPs) were first produced in one-step batch process using amphiphilic triblock macro-RAFT copolymers as stabilizers. Such turn employed seeds continuous polymerization w...

Journal: :Chemical communications 2011
Zanru Guo Yujun Feng Yu Wang Jiyu Wang Yufeng Wu Yongmin Zhang

An amidine-based polymer was prepared by combination of RAFT polymerization and "click" reaction, and the polymer undergoes a hydrophobic-hydrophilic transition upon the stimulus of CO(2).

Journal: :Polymer Chemistry 2023

A stimuli-responsive BAB triblock copolymer of PNIPAm- b -PVP- -PNIPAm, which displayed a thermoreversible sol–gel transition, was readily synthesized via redox-initiated aqueous RAFT mediated polymerization, under mild conditions.

Journal: :Green Chemistry 2021

Investigation of film formation cationically charged nanolatexes comprised terpene-derived monomer synthesized with emulsion and RAFT-mediated polymerization induce self-assembly on cellulose.

Journal: :Polymer Chemistry 2022

Poly(2-hydroxyethyl acrylate)-poly(4-hydroxybutyl acrylate) nano-objects are prepared by aqueous polymerization-induced self-assembly (PISA) using an ionic RAFT agent.

Journal: :Polymer Chemistry 2021

Well-defined doubly pH-responsive schizophrenic diblock copolymer nanoparticles with tunable isoelectric points are prepared via RAFT aqueous dispersion polymerization using an efficient one-pot protocol.

Journal: :Chemical communications 2008
Renaud Nicolaÿ Yungwan Kwak Krzysztof Matyjaszewski

Poly(vinyl acetate)-b-polystyrene, poly(vinyl acetate)-b-poly(methyl acrylate) and poly(vinyl acetate)-b-poly(methyl methacrylate) block copolymers with low polydispersity (M(w)/M(n) < 1.25) were prepared by successive reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) employing a bromoxanthate iniferter (initiator-transfer age...

Journal: :Chemical communications 2010
Alexander H Soeriyadi Cyrille Boyer James Burns C Remzi Becer Michael R Whittaker David M Haddleton Thomas P Davis

In this work, we combine reversible addition fragmentation transfer polymerization (RAFT) with cobalt catalytic chain transfer (CCT) to obtain omega-unsaturated polymers with relatively low polydispersity values.

Journal: :Polymer Chemistry 2021

The synthesis of Laponite®-based nanocomposite latexes by reversible addition-fragmentation chain transfer (RAFT)-mediated surfactant-free emulsion polymerization using different macroRAFT agents is described.

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