Quantitative study on the homogeneity of networks synthesized by nitroxide-mediated radical copolymerization of styrene and divinylbenzene

被引：9
作者：
Hamzehlou, Shaghayegh [1 ]
Reyes, Yuri [2 ]
Leiza, Jose R. [1 ]
机构：
[1] Univ Basque Country, UPV EHU, Kim Zientzien Fak, POLYMAT,Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, Donostia San Sebastian 20018, Spain
[2] Univ Autonoma Metropolitana Unidad Lerma UAM L, Dept Recursos Tierra, Av Hidalgo 46, Lerma De Villada 52006, Mexico
来源：
EUROPEAN POLYMER JOURNAL | 2016年 / 85卷
关键词：
Controlled radical polymerization; Crosslinking; Network homogeneity; MONTE-CARLO-SIMULATION; CROSS-LINKING COPOLYMERIZATION; EMULSION POLYMERIZATION; LINKED POLYMERS; GEL FORMATION; STOCHASTIC SIMULATION; CHAIN TRANSFER; MINIEMULSION; MONOMERS; VINYL;
D O I：
10.1016/j.eurpolymj.2016.10.015
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The nitroxide-mediated radical copolymerization (NMRP) of styrene and divinylbenzene was studied using a Monte Carlo simulation. The model predictions were validated by comparing to experimental results gathered from literature. Polymer network microstructure was studied through complete molar mass distribution (including the gel part) of the polymer and by quantitative representation of the homogeneity of the network, i.e. the broadness of the distribution of the molar mass between crosslinking points (Mc). The nitroxide mediated radical polymerization led to a narrower Mc distribution compared to free radical polymerization, and the average Mc did not change significantly through the reaction. The narrower Mc distribution is an indicator of more homogenous network and clarifies many conflicting statements in the literature on homogeneity-of the network obtained by controlled radical polymerization. (C 2016 Elsevier Ltd. All rights reserved.
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收藏
页码：244 / 255
页数：12
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