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tBCPMA: a new trifunctional acrylic monomer for convenient synthesis of a well-defined amphiphilic graft copolymer by successive RDRP
Alternative TitletBCPMA: a new trifunctional acrylic monomer for convenient synthesis of a well-defined amphiphilic graft copolymer by successive RDRP
Feng C(冯纯)1; Lu GL(陆国林)1; Sun G(孙钢)1; Liu XW(刘训伟)1; Huang XY(黄晓宇)1
2014
Source PublicationPolym. Chem.
Volume5Issue:20Pages:6027-6038
AbstractA series of well-defined amphiphilic graft copolymers, consisting of a hydrophobic poly(tert-butyl acrylate) backbone and hydrophilic poly(N-isopropylacrylamide) side chains, were synthesized by successive reversible addition-fragmentation chain transfer (RAFT) polymerization and supplemental activator and reducing agent atom transfer radical polymerization (SARA ATRP) in the presence of Cu(0). A new Cl-containing acrylate monomer, tert-butyl 2-((2-chloropropanoyloxy)methyl)acrylate, was first RAFT homopolymerized in a controlled way to give a well-defined homopolymer with a narrow molecular weight distribution (M-w/M-n = 1.10). This homopolymer directly initiated SARA ATRP of N-isopropylacrylamide to afford well-defined poly(tert-butyl acrylate)-g-poly(N-isopropylacrylamide) (PtBA-g-PNIPAM) graft copolymers (M-w/M-n <= 1.30) via the grafting-from a strategy without polymeric functionality transformation to introduce the initiating group. Finally, the hydrophobic PtBA backbone was selectively hydrolyzed in an acidic environment without affecting PNIPAM side chains to provide poly(acrylic acid)g-poly(N-isopropylacrylamide) (PAA-g-PNIPAM) graft copolymers. The influences of the length of PNIPAM side chains and the salinity on the critical micelle concentration of the PtBA-g-PNIPAM amphiphilic graft copolymer were examined by fluorescence spectroscopy. Furthermore, thermo-responsive behaviors of the copolymers were investigated by UV-vis spectroscopy, dynamic light scattering, and transmission electron microscopy.
Subject Area高分子化学
DOI10.1039/c4py00772g
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Indexed BySCI
Language英语
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sioc.ac.cn/handle/331003/38906
Collection高分子材料研究室
Corresponding AuthorSun G(孙钢); Huang XY(黄晓宇)
Affiliation1.中科院上海有机化学研究所
2.中国人民解放军济南军区总医院
Recommended Citation
GB/T 7714
Feng C,Lu GL,Sun G,et al. tBCPMA: a new trifunctional acrylic monomer for convenient synthesis of a well-defined amphiphilic graft copolymer by successive RDRP[J]. Polym. Chem.,2014,5(20):6027-6038.
APA 冯纯,陆国林,孙钢,刘训伟,&黄晓宇.(2014).tBCPMA: a new trifunctional acrylic monomer for convenient synthesis of a well-defined amphiphilic graft copolymer by successive RDRP.Polym. Chem.,5(20),6027-6038.
MLA 冯纯,et al."tBCPMA: a new trifunctional acrylic monomer for convenient synthesis of a well-defined amphiphilic graft copolymer by successive RDRP".Polym. Chem. 5.20(2014):6027-6038.
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