Self-assembly of L-proline functional thermoresponsive double hydrophlic block copolymers for aldol reaction in water: the influence of POEGA block content

被引：5

作者：

Liu, Kuan ^{[1
]}

Xu, Weiwei ^{[1
]}

Wang, Qinya ^{[1
]}

Tang, Yu ^{[1
]}

Sheng, Weibing ^{[1
]}

Shen, Yinghua ^{[1
]}

Shi, Lijuan ^{[2
]}

机构：

[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Shanxi, Peoples R China

[2] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China

来源：

COLLOID AND POLYMER SCIENCE | 2018年 / 296卷 / 07期

关键词：

Double hydrophlic block copolymers; POEGA block content; Thermoresponsive self-assembly; Aldol reaction; SMALL ORGANIC-MOLECULES; PHASE-TRANSITION; AQUEOUS-SOLUTION; POLYMER; POLY(N-ISOPROPYLACRYLAMIDE); CATALYSTS; ORGANOCATALYSTS; NANOREACTORS; ASSOCIATION; BEHAVIOR;

D O I：

10.1007/s00396-018-4327-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The self-assembly of L-proline functional thermoresponsive double hydrophlic block copolymers (DHBCs) can effectively catalyze aldol reaction in water. Considering the block content of copolymers influences the assemblies and catalytic activities, thermoresponsive DHBCs supported L-proline P(NIPAm-co-ProlA)-b-POEGA with different POEGA block content were prepared by reversible addition fragmentation chain transfer (RAFT) polymerization. The therm-triggered self-assemblies were investigated by dynamic light scattering (DLS) and transmission electron microscopy (TEM). Then, the resultant assemblies were used as catalysts for the aldol reaction with cyclohexanone and 4-nitrobenzaldehyde as substrates. The results indicated that P(NIPAm-co-ProlA)-b-POEGA with ca. 18 mol% of POEGA can form stable catalytic system, which maintained high selectivity and productivity of product, accompanied with satisfactory reusability.

引用

页码：1109 / 1117

页数：9

共 43 条

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