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Synthesis of Comb‐branched Polyacrylamide with Cationic Poly[(2‐dimethylamino)ethyl Methacrylate Dimethylsulfate] Quat by Faquan Zeng; Youqing Shen; Shiping Zhu is a Materials Science article available to read on EtoBox.
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## Abstract Comb‐branched polyelectrolytes with polyacrylamide backbones and poly[(2‐dimethylamino)ethyl methacrylate methylsulfate] (polyDMAEMA‐DMS) side chains were prepared by free‐radical macromonomer polymerization. PolyDMAEMA‐DMS macromonomers bearing terminal styrenic moieties were synthesized by living anionic polymerization with lithium 4‐vinylbenzylamide (LiVBA) and lithium __N__‐isopropyl‐4‐vinylbenzylamide (LiPVBA) as initiators. In the presence of LiCl, LiPVBA initiated a living polymerization of 2‐(dimethylamino)ethyl methacrylate (DMAEMA) and produced polymers with well‐controlled molecular weights and low polydispersities. LiVBA could not directly initiate DMAEMA polymerization. After being capped with two units of dimethylacrylamide, DMAEMA polymerized with an initiator efficiency of 63%. The quaternization of the poly[(2‐dimethylamino)ethyl methacrylate] macromonomer with dimethyl sulfate yielded the cationic polyDMAEMA‐DMS macromonomer. The polyDMAEMA‐DMS macromonomer had a much higher reactivity than acrylamide in free‐radical polymerization. This might have been due to the formation of polyDMAEMA‐DMS micelles in the polymerization system. The high macromonomer
Who reads Synthesis of Comb‐branched Polyacrylamide with Cationic Poly[(2‐dimethylamino)ethyl Methacrylate Dimethylsulfate] Quat?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Faquan Zeng; Youqing Shen; Shiping Zhu
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)
- Published
- 2002
- Language
- EN
- Field
- Materials Science (Physical Sciences)