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
收藏
页码：1727 / 1735
页数：9
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