Graphene oxide sheets covalently functionalized with block copolymers via click chemistry as reinforcing fillers
Graphene oxide sheets covalently functionalized with block copolymers via click chemistry as reinforcing fillers
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通过点击化学与嵌段共聚物共价功能化的氧化石墨烯片作为增强填料
DOI：
10.1039/c1jm10420a
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发表时间：
2011-01-01
影响因子：
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通讯作者：
Wu, Peiyi
中科院分区：
文献类型：
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作者：
Cao, Yewen;Lai, Zuliang;Wu, Peiyi
在此，通过利用点击化学，我们提出了一种通用的和有效的方法来共价官能化氧化石墨烯片（GOSs）与嵌段共聚物，即聚（苯乙烯-b-乙烯-co-丁烯-b-苯乙烯）（SEBS）三嵌段共聚物作为本研究的一个例子。通过详细的研究证实了SEBS与GOS的共价连接以及杂交种的个体性质。为了研究嵌段共聚物点击型GOSs的潜在应用，将其作为增强填料引入到聚苯乙烯（PS）中。SEBS-点击GOSs表现出优异的相容性与PS基体，并作为一个结果，显着改善所得复合膜的机械性能和热稳定性实现。该方案被认为提供了将GOS的非凡性能与嵌段共聚物的多功能性质充分联合收割机结合的可能性，并且因此可用于各种技术领域。
Herein, by taking advantage of click chemistry, we propose a general and effective methodology to covalently functionalize graphene oxide sheets (GOSs) with block copolymers, namely poly(styrene-b-ethylene-co-butylene-b-styrene) (SEBS) triblock copolymers as an example in this study. The covalent attachment of SEBS to GOSs, as well as the individual nature of the hybrids, was confirmed by detailed investigations. For the potential applications of the block copolymer-clicked GOSs, they were incorporated into polystyrene (PS) as reinforcing fillers. The SEBS-clicked GOSs showed excellent compatibility with a PS matrix, and as a consequence, remarkably improved mechanical properties and thermal stability of the resulting composite films were achieved. This protocol is believed to offer possibilities to fully combine the extraordinary performances of GOSs with the multifunctional properties of block copolymers, and thus be useful in a variety of technological fields.