文献类型：期刊文献

英文题名：Synthesis and Characterization of Star Polymer with Comb-like Poly(lauryl methacrylate) Arms by Atom Transfer Radical Polymerization via One-pot 'Arm-First' Method

作者：Lin, Qunfang[2];Zhou, Xiaodong[1];Xie, Xuan[1];Ying, Shuni[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：49

期号：6

起止页码：502

外文期刊名：JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY

收录：;EI(收录号：20122115053902);WOS:【SCI-EXPANDED(收录号:WOS:000303581100007)】；

基金：The authors sincerely acknowledge the support of NSFC 51073055.

语种：英文

外文关键词：Comb-like arm; star polymer; lauryl methacrylate; atom transfer radical polymerization (ATRP); triple-detector gel permeation chromatography (GPC)

摘要：Atom transfer radical polymerization (ATRP) was used to prepare core crosslinked star polymers with comb-like poly (lauryl methacrylate) (LMA) arms by one-pot "arm-first" method, involving the synthesis of comb-like PLMA arms, followed by their crosslinking, using a mixture of LMA monomer and ethylene glycol dimethacrylate (EGDMA) crosslinker. By adjusting the feeding time and level of EGDMA, a series of star-like polymers with various comb-like arms length and number can be obtained. The molecular architecture including radius of gyration (Rg), hydrodynamic radius (Rh) and intrinsic viscosity (eta(i)) etc. were characterized by a triple-detector gel permeation chromatography (GPC) equipped with a refractive index detector, viscometer detector and a multi-angle static laser light scattering (MALLS) detector. The thermal property and shearing stability of these star-like polymers were also investigated.