Synthesis and characterization of a graft side-chain liquid crystalline polysiloxane
作者:Guofeng Wang、Ying Xiong、Hongding Tang
DOI:10.1016/j.jorganchem.2014.10.026
日期:2015.1
A graft side-chain crystalline polymer PI with polysiloxane as backbone and a liquid crystal polymer, poly6-(4′-octyloxyphenyl-4″-benzoyl)hexyl acrylate}, as side chain has been synthesized via atom transfer radical polymerization (ATRP) technique. Attaching mesogenic polymers to the polysiloxane main chain through ATRP technique brings about the high density of mesogenic units and avoids the subsequent
通过原子转移自由基聚合(ATRP)合成了以聚硅氧烷为骨架和液晶聚合物聚6-(4'-辛基氧基苯基-4″-苯甲酰基)丙烯酸己酯}作为侧链的接枝侧链结晶聚合物PI。 )技术。通过ATRP技术将介晶聚合物连接到聚硅氧烷主链上,可实现高密度的介晶单元,并避免了传统氢化硅烷化过程中残留的Si-H引起的后续交联反应。通过TGA,DSC,POM和XRD详细研究了接枝液晶聚合物PI的性能。热分析表明,与介晶单体相比,聚合物PI具有更宽的中间相温度范围和较高的热稳定性。