One-pot catalyst-switching synthesis of thermoresponsive amphiphilic diblock copolymers consisting of poly(N,N-diethylacrylamide) and biodegradable polyesters

被引：1

作者：

Fu, Xiangming ^{[1
]}

Wang, Yanqiu ^{[1
]}

Xu, Liang ^{[1
]}

Narumi, Atsushi ^{[2
]}

Sato, Shin-ichiro ^{[3
]}

Shen, Xiande ^{[1
,4
]}

Kakuchi, Toyoji ^{[1
,3
,4
]}

机构：

[1] Changchun Univ Sci & Technol, Res Ctr Polymer Mat, Engn Res Ctr Optoelect Funct Mat, Sch Mat Sci & Engn,Minist Educ, Weixing Rd 7989, Jilin 130022, Peoples R China

[2] Yamagata Univ, Grad Sch Organ Mat Sci, 4-3-16 Jonan, Yonezawa, Yamagata 9928510, Japan

[3] Hokkaido Univ, Fac Engn, Div Appl Chem, Sapporo, Hokkaido 0608628, Japan

[4] Changchun Univ Sci & Technol, Chongqing Res Inst, 618 Liangjiang Ave, Chongqing City 401135, Peoples R China

来源：

POLYMER CHEMISTRY | 2023年 / 14卷 / 15期

关键词：

RING-OPENING POLYMERIZATION; BLOCK-COPOLYMERS; N; N-DISUBSTITUTED ACRYLAMIDE; EPSILON-CAPROLACTONE; L-LACTIDE; POLY(N-ISOPROPYL; ORGANOCATALYST; TEMPERATURE; MECHANISM;

D O I：

10.1039/d3py00195d

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A method for the syntheses of thermoresponsive amphiphilic diblock copolymers through sequential organocatalyzed polymerizations of vinyl-based and lactone-based monomers using group transfer polymerization (GTP) and ring-opening polymerization (ROP), respectively, is described. The organocatalysts were switched between the two polymerization stages and all syntheses could be conducted in a one-pot manner. The polymerization systems directly produced diblock copolymers composed of poly(N,N-diethylacrylamide) and biodegradable polyesters (poly(epsilon-caprolactone), poly(trimethylene carbonate), and poly(l-lactide) in various content ratios. Aqueous solutions of the obtained block copolymers below their cloud point temperatures (T-cp) were carefully characterized, revealing a close relationship among the structures of the block copolymers, T-cp, and micellar forming properties below the T-cp.

引用

页码：1727 / 1735

页数：9

共 57 条

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