Stimuli-responsive polymer nanocomposites based on styrene-butadiene rubber and bacterial cellulose whiskers

被引：13
作者：
Chen, Yang [1 ]
Li, Geng [1 ]
Yin, Qing [1 ]
Jia, Hongbing [1 ]
Ji, Qingmin [2 ]
Wang, Liping [1 ]
Wang, Dongni [1 ]
Yin, Biao [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Jiangsu, Peoples R China
[2] Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Jiangsu, Peoples R China
来源：
POLYMERS FOR ADVANCED TECHNOLOGIES | 2018年 / 29卷 / 05期
关键词：
bacterial cellulose whiskers; dynamical mechanical properties; stimuli-responsive behavior; styrene-butadiene rubber; water uptake; COMPOSITES; NANOCRYSTALS; REINFORCEMENT; PERFORMANCE; SIMULATION; FILMS;
D O I：
10.1002/pat.4262
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Water-induced mechanically adaptive rubber nanocomposites were prepared by mixing bacterial cellulose whiskers (BCWs) suspension with styrene-butadiene rubber (SBR) latex, followed by evaporation method. The structure, morphology, dynamic mechanical properties, water stimuli-responsive behavior, and biodegradability of SBR/BCWs nanocomposite films were investigated. The results showed that the hydrophilic whiskers had a significant reinforcement effect on the storage modulus of SBR matrix, which originated from the formation of a rigid three-dimensional filler network within matrix by strong hydrogen bonding between whiskers. The SBR/BCWs nanocomposites showed pronounced water stimuli-responsive behavior compared with neat SBR. The storage modulus of SBR/BCWs nanocomposite could be decreased by 99.2% after equilibrium water swelling. This remarkable water-triggered modulus change is attributed to the disentanglement of BCWs network via competitive hydrogen bonding with water.
引用
收藏
页码：1507 / 1517
页数：11
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