WebA novel click-functionalized RAFT chain transfer agent (RAFT CTA) was synthesized which opened up the possibility of using RAFT polymerization and click chemistry together in surface modification. Using this RAFT CTA, the surface of silica nanoparticles was modified with polystyrene and polyacrylamide brushes via the "grafting to" approach. WebIn order to prepare well-defined block copolymers using switchable RAFT agents, the MAM block segment should be polymerized first with a protonated RAFT agent, followed by deprotonation and subsequent polymerization of the LAM block (s). 1,9,10 This is primarily due to the fact that terminal LAM groups are poor radical leaving groups, leading ...
Tailoring Polymer Dispersity by RAFT Polymerization: A Versatile ...
WebTrithiocarbonates were reported as effective RAFT agents by Le et al. 367 Trithiocarbonates are less active than other RAFT CTAs, but are effective at controlling the polymerization of styrenic and meth (acrylic) monomers. Trithiocarbonates are also more easily synthesized and purified than other RAFT reagents. Webtelechelics resulting from the use of a difunctional CTA possessing the dithioester groups at each end.31 In an effort to extend our work on telechelic synthesis and expand the utility of the RAFT polymerization technique, we propose the use of functional chain transfer agents as a facile method in the synthesis of a variety of macromonomers ... darmstadt mare e monti
RAFT: Choosing the Right Agent to Achieve Controlled …
WebOct 18, 2024 · ATRP and RAFT are amenable to many monomer classes, the most widely investigated being acrylates, acrylamides, methacrylates and styrene (Fig. 2a). To identify optimal conditions for different ... WebFeb 15, 2024 · The synthesis of the star polymer was examined by RAFT polymerization of PEGDA crosslinker using the obtained P(tBA-b-HEA) block macro-CTA in methanol at 60 °C. WebIn this paper, we have tried to use a Z-type macro-RAFT agent (mPEG 113 -BTPA) to mediate RAFT dispersion polymerization of styrene, and found that the process exhibited a poorer … darlene medications