Synthesis of Janus POSS star polymer and exploring its compatibilization behavior for PLLA/PCL polymer blends

被引：48
作者：
Han, Di [1 ]
Wen, Tian-jiao [1 ]
Han, Ge [1 ]
Deng, Yi-yi [1 ]
Deng, Yang [1 ]
Zhang, Qin [1 ]
Fu, Qiang [1 ]
机构：
[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Sichuan, Peoples R China
来源：
POLYMER | 2018年 / 136卷
基金：
中国国家自然科学基金;
关键词：
Janus star polymers; Polyhedral oligomeric silsesquioxane; Compatibilization of polymer blends; POLYHEDRAL OLIGOMERIC SILSESQUIOXANE; CLICK CHEMISTRY; NANOPARTICLES; NANOCOMPOSITES; ARCHITECTURE; PARTICLES; INTERFACE; TOUGHNESS; FACILE; IMPACT;
D O I：
10.1016/j.polymer.2017.12.050
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Synthesis of hybrid hetero-arms star polymer with precisely defined arms distribution in three dimensional (3D) space is still a challenge. Herein, we have employed cubic polyhedral oligomeric silsesquioxane (POSS) nanoparticle as a scaffold to synthesize a biodegradable Janus POSS star polymer (oom-T(8)PLLA(5)PCL(3)), which contains an inorganic rigid POSS core, three poly(epsilon-caprolactone) (PCL) arms and five poly(L-lactide) ( PLLA) arms on the POSS cage two sides, respectively. The chemical structure of oom-T(8)PLLA(5)PCL(3) was confirmed by NMR, SEC, and FTIR spectra. As an example of application for the Janus POSS star polymer, oom-T(8)PLLA(5)PCL(3) was used for the compatibilization of biodegradable PLLA/PCL (w/w = 70/30) blends. It was found that oom-T(8)PLLA(5)PCL(3) could reduce the dispersed PCL phase size in PLLA matrix and enhance the properties of PLLA/PCL polymer blends, which was reflected in the increase of Izod impact strength and tensile performance of the polymer blends. (c) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：84 / 91
页数：8
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