Synthesis and new application of green and recyclable cyclic poly(L-lactide)-clay hybrid

被引：13

作者：

Prasad, Aitha Vishwa ^{[1
]}

Biying, Algin Oh ^{[1
]}

Ling, Woo Yuan ^{[1
]}

Stubbs, Ludger Paul ^{[1
]}

Zhu, Yinghuai ^{[1
]}

机构：

[1] Inst Chem & Engn Sci, Singapore 627833, Singapore

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2013年 / 51卷 / 19期

关键词：

aminocarbonylation; biodegradable; catalysis; cyclic polylactide; nanocomposites; RING-OPENING POLYMERIZATION; N-HETEROCYCLIC CARBENES; LANTHANIDE COMPLEXES; PALLADIUM; NANOPARTICLES; CHEMISTRY; ALDEHYDES; CATALYSTS; POLYMERS; LACTIDE;

D O I：

10.1002/pola.26829

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report on the application of biodegradable cyclic poly(L-lactide) (PLLA) as new stabilizer; synthesis and application of a cyclic PLLA-clay hybrid material as recyclable catalyst support. Cyclic PLLAs were used to stabilize palladium nanoparticles synthesized by a wet chemical method. It was found that the palladium particles were smaller with cyclic PLLA stabilizer (approximate to 5-10 nm) than the particles obtained from linear PLLA. The cyclic PLLA-clay hybrid was prepared by a zwitterionic ring-opening polymerization catalyzed by in situ-generated N-heterocyclic carbene catalyst. Palladium (0) nanoparticles were supported and well dispersed on the cyclic PLLA-clay hybrid to form a new nanocomposite. The nanocomposite was found to be a highly efficient and recyclable catalyst for the aminocarbonylation reactions of aryl halides with various amines. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 4167-4174

引用

页码：4167 / 4174

页数：8

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