نتایج جستجو برای: raft polymerization

تعداد نتایج: 35557  

Journal: :Chemical communications 2012
Yue Ma Ying Zhang Man Zhao Xianzhi Guo Huiqi Zhang

A facile, general, and highly efficient approach to obtain narrowly dispersed molecularly imprinted polymer microspheres with multiple stimuli-responsive template binding properties in aqueous media by successive RAFT polymerization is described.

Journal: :Chemical communications 2012
Robert H Utama Yi Guo Per B Zetterlund Martina H Stenzel

Hollow polymeric nanoparticles with a hydrophilic liquid core have been synthesized in a one-pot approach via a novel inverse miniemulsion periphery RAFT polymerization process. Successful encapsulation and release of a model protein is reported as a potential application.

Journal: :Polymer Chemistry 2021

Using a non-ionic steric stabilizer for the RAFT aqueous emulsion polymerization of methyl methacrylate leads to flocculated nanoparticles when targeting DPs > 100; there is no such constraint employing an anionic block.

2013
Yuanming DENG Safia Boudjema Jean Yves BUFFIERE

This work is generally aimed to synthesize POSS based BCPs via RAFT polymerization, to study their self-assembly behaviors, to research on the effect of POSS self-assembly structure on the bulk properties and to prepare nanostructured hybrid epoxy via self-assembly of POSS based copolymer. In Chapter1, We studied the RAFT polymerization of POSS macromers and capable to synthesize well defined P...

Journal: :Molecules 2018
Cormac Duffy Per B Zetterlund Fawaz Aldabbagh

Cyanoacrylates (CAs) are well-known fast-setting adhesives, which are sold as liquids in the presence of stabilizers. Rapid anionic polymerization on exposure to surface moisture is responsible for instant adhesion. The more difficult, but synthetically more useful radical polymerization is only possible under acidic conditions. Recommendations on the handling of CAs and the resulting polymers ...

2011
Bastian Ebeling

When linear polytrithiocarbonates as Reversible Addition-Fragmentation chain Transfer (RAFT) agents are employed in a radical polymerization, the resulting macromolecules consist of several homogeneous polymer blocks, interconnected by the functional groups of the respective RAFT agent. Via a second polymerization with another monomer, multiblock copolymers—polymers with alternating segments of...

Journal: :Chemical communications 2009
Debashish Roy Jennifer N Cambre Brent S Sumerlin

Boronic acid-containing block copolymers capable of solution self-assembly into micelles and reverse micelles in response to changes in temperature, pH, and sugar concentration were prepared by reversible addition-fragmentation chain transfer (RAFT) polymerization.

Journal: :Chemical communications 2012
Xiaofang Shi Wei Zhou Qian Qiu Zesheng An

Well-defined amphiphilic heteroarm core cross-linked star (CCS) polymer was efficiently synthesized by RAFT-mediated arm-first strategy in dispersion polymerization, and its direct self-assembly in water was demonstrated.

Journal: :Polymer Chemistry 2021

PNIPAM-b-PVDF amphiphilic block copolymers were synthesized via RAFT polymerization in dimethyl carbonate. These able to self-assemble into various morphologies such as spherical, crumpled, lamellar and lenticular 2D aggregates.

2015
Lifang Zhu Mali Zhou Shanshan Yang Jiangnan Shen Patrice Woisel

Facile synthesis of poly (N,N-dimethylaminoethyl methacrylate) (PDMAEMA) star polymers on the basis of the prepolymer chains, PDMAEMA as the macro chain transfer agent and divinyl benzene (DVB) as the cross-linking reagent by reversible addition-fragmentation chain transfer (RAFT) polymerization was described. The RAFT polymerizations of DMAEMA at 70 °C using four RAFT agents with different R a...

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