Synthesis of Well-Defined Polystyrene-Block-Polyglycidol (PS-b-PG) Block Co-polymers by Anionic Polymerization

被引：19

作者：

Siebert, Melanie

Keul, Helmut

Moeller, Martin ^{[1
]}

机构：

[1] Inst Tech & Macromol Chem, D-52056 Aachen, Germany

来源：

DESIGNED MONOMERS AND POLYMERS | 2010年 / 13卷 / 06期

关键词：

PS-b-PG block co-polymers; PS-b-PEEGE deprotection; anionic polymerization; s-BuLi/P4-t-Bu initiating system; CHAIN TRANSFER-REACTION; POLYSTYRENE-BLOCK-POLY(ETHYLENE OXIDE) MICELLES; FUNCTIONAL POLYMERS; AQUEOUS-SOLUTIONS; ETHYLENE-OXIDE; PROPYLENE; OXIRANES; NANOPARTICLES; INITIATORS; VESICLES;

D O I：

10.1163/138577210X530657

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Well-defined polystyrene-block-polyglycidol (PS-b-PG) block co-polymers of various composition were prepared in two steps: (i) sequential anionic polymerization of styrene in benzene initiated with sec. butyl lithium followed by the polymerization of ethoxy ethyl glycidyl ether in the presence of the phosphazene base P-4-t-Bu and (ii) deprotection of the corresponding polystyrene-block-poly(ethoxy ethyl glycidyl ether) block co-polymers with concentrated HCl or an acidic ion-exchange resin, respectively. The polymers were characterized by size-exclusion chromatography, nuclear magnetic resonance spectroscopy and differential scanning calorimetry, proving that narrow distributed block co-polymers of predetermined composition were obtained, which, based on their amphiphilic character, self-organize into hydrophilic and hydrophobic domains. (C) Koninklijke Brill NV, Leiden, 2010

引用

页码：547 / 563

页数：17

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