Chemical modification of graphene with a thermotropic liquid crystalline polymer and its reinforcement effect in the polymer matrix

摘要: In our work, graphene oxide (GO) was covalently functionalized with propargyl alcohol to obtain alkyne terminated oxide. These groups on sheets further reacted a kind of azido-functionalized liquid crystalline polymer via click chemistry, which found be facile and effective method graft the onto GO sheets. The introduced here side-chain – poly{2,5-bis[(4-methoxyphenyl)oxycarbonyl]styrene} (PMPCS). Azido-functionalized PMPCS prepared beforehand by atom transfer polymerization polymers designed molecular weight. successful introduction functional chains confirmed FTIR, TEM AFM characterizations. Thermogravimetric analysis used calculate efficiency. Raman X-ray photoelectron spectroscopies revealed that had more profound π–π stacking interactions charge effect after phase transition. Therefore, as-prepared GO–PMPCS composite potential applications in improving mechanical properties matrix as been investigated rheological measurements.