含十二烷基的聚甲基丙烯酸N,N-二甲氨基乙酯的合成及性能研究

doi:10.13218/j.cnki.csdc.2014.11.134

Abstract

Abstract: Poly[2-(N,N-dimethyl amino) ethyl methacrylate] with dodecyl group (PDMAEMA-C₁₂H₂₅) was synthesized via the reversible addition-fragmentation chain transfer (RAFT) free radical polymerization with 2-{[(dodecy-sulfenyl)-carbonothionyl]sulfanyl} succinic acid (DCTSS) as chain transfer agent and AIBN as initiator.The effects of some parameters on the polymerization of DMAEMA were investigated,such as temperature,molar ratio of the chain transfer agent to the initiator.The structures and molecular weight of the products were characterized by ¹HNMR and GPC.Meanwhile,surface properties of the product were measure.Results showed that at the reaction temperature of 70 ℃ and the molar ratio of the chain transfer agent to the initiator of 4:1,the molecular weight distribution of PDMAEMA-C₁₂H₂₅ is narrow and the reaction is controllable.The product displays rather lower critical micelle concentration (0.022 g·L^-1) with lowest surface tension of 33.8 mN·m^-1 (at 25 ℃),and good dispersing action for dyestuffs.

Key words: polymer surfactant, reversible addition-fragmentation chain transfer polymerization, dispersion

CLC Number:

TQ423

ZHOU Jian-hua, WANG Hai-long, HE Ren-yan. Preparation and properties of poly[2-(N,N-dimethyl amino) ethyl methacrylate] with dodecyl group[J].China Surfactant Detergent & Cosmetics, 2014, 44(11): 601-604.

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Preparation and properties of poly[2-(N,N-dimethyl amino) ethyl methacrylate] with dodecyl group

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