التفاصيل البيبلوغرافية
| العنوان: |
Efficient Production of High‐Quality Polystyrene‐Functionalized Graphene via Graphite Exfoliation in Chloroform with a Heterobifunctional Hyperbranched Polyethylene as Stabilizer. |
| المؤلفون: |
Duan, Donghai, Ye, Huijian, Luo, Zhenggang, Han, Bo, Chen, Yafei, Cao, Xiehong, Liu, Wenxian, Zhong, Mingqiang, Xu, Lixin |
| المصدر: |
Macromolecular Chemistry & Physics; May2019, Vol. 220 Issue 9, pN.PAG-N.PAG, 1p |
| مصطلحات موضوعية: |
GRAPHENE, POLYETHYLENE, CHLOROFORM, GRAPHITE, STACKING interactions, SONICATION |
| مستخلص: |
Efficient production of high‐quality, functionalized graphene is highly desirable for large‐scale applications of graphene. Herein, a route for producing high‐quality, polystyrene (PS)‐functionalized graphene is demonstrated via graphite exfoliation in chloroform with a heterobifunctional hyperbranched polyethylene, HBPE@Py@PS, as stabilizer. The HBPE@Py@PS, possessing a pyrene‐functionalized hyperbranched polyethylene backbone and multiple PS side chains, is synthesized by combining chain walking polymerization and atom transfer radical polymerization techniques. It is confirmed that the HBPE@Py@PS can effectively promote graphite exfoliation in chloroform under sonication to render stable dispersions of high‐quality graphene, with an exfoliation efficiency high as 15% and a monolayer proportion, 61%. Meanwhile, it can irreversibly adsorb on the exfoliated graphene surface based on the π–π stacking interactions, concurrently rendering PS‐functionalized graphene that is fluorescent and highly dispersible in chloroform, with a film conductivity reaching 1100 S m−1. The as‐produced graphene may find its applications as nanofiller for various PS‐based graphene nanocomposites. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
