نتایج جستجو برای: raft polymerization

تعداد نتایج: 35557  

Journal: :Polymer Chemistry 2021

Reversible addition–fragmentation chain-transfer (RAFT) polymerization is a powerful tool for the precise formation of macromolecular building blocks that can be used construction well-defined nanocomposites.

Journal: :Polymer Chemistry 2021

Two new classes of polyampholytic diblock copolymers are prepared via RAFT aqueous solution polymerization and their behaviour is assessed using 1 H NMR spectroscopy, dynamic light scattering electrophoresis measurements.

Journal: :Chimia 2023

Reversing controlled radical polymerization and regenerating the monomer has been a long-standing challenge for fundamental research practical applications. Herein, we report highly efficient depolymerization method various polymethacrylates synthesized by reversible addition-fragmentation chain-transfer (RAFT) polymerization. The process, which does not require any catalyst, exhibits near-quan...

2016
Thomas G. McKenzie Qiang Fu Mineto Uchiyama Kotaro Satoh Jiangtao Xu Cyrille Boyer Masami Kamigaito Greg G. Qiao

In Research News article 1500394, recently developed methods for activating polymerizations employing RAFT agents are described by T. G. McKenzie, C. Boyer, M. Kamigaito, G. G. Qiao, and co-workers. Direct photolysis, or the use of a multitude of (in)organic photoredox catalysts are shown to be effective for activation of radical polymerizations, while various acids are employed together with d...

2017
Steffen Eggers Volker Abetz

The combination of reversible addition–fragmentation chain transfer (RAFT) and emulsion polymerization has recently attracted much attention as a synthetic tool for high-molecular-weight block copolymers and their micellar nano-objects. Up to recently, though, the use of thermoresponsive polymers as both macroRAFT agents and latex stabilizers was impossible in aqueous media due to their hydroph...

Journal: :Journal of the American Chemical Society 2007
Zesheng An Qihui Shi Wei Tang Chia-Kuang Tsung Craig J Hawker Galen D Stucky

Water-soluble macromolecular chain transfer agents (Macro-CTAs) were developed for the microwave-assisted precipitation polymerization of N-isopropylacrylamide. Two types of Macro-CTAs, amphiphilic (Macro-CTA1) and hydrophilic (Macro-CTA2), were investigated regarding their activity for the facile formation of nanoparticles and double hydrophilic block copolymers by RAFT processes. While both M...

Journal: :Polymer Chemistry 2022

Herein we demonstrate the effect that structure of olefinic end-group ( i.e. oxanorbornenyl vs norbornenyl) has upon outcome both macromonomer preparation by RAFT polymerization and subsequent bottlebrush polymer synthesis ROMP.

2017
Fiona L. Hatton Steven P. Armes

The environmentally-friendly synthesis of epoxy-functional spherical nanoparticles has been achieved using polymerization-induced self-assembly (PISA) in aqueous solution. Firstly, a non-ionic hydrophilic stabilizer block, poly(glycerol monomethacrylate) (PGMA), was prepared by reversible addition–fragmentation chain transfer (RAFT) solution polymerization in ethanol. This water-soluble precurs...

Journal: :Chemical communications 2005
Hideharu Mori Hideyuki Iwaya Atsushi Nagai Takeshi Endo

Well-defined polymers derived from L-proline are synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization and the amino acid-based polymers exhibit thermosensitive phase separation at lower critical solution temperatures (LCST = 15-45 degrees C) in aqueous medium.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید