自由基-悬浮聚合法制备苯乙炔均聚物和共聚物微球
Preparation of phenylacetylene-based homo- and co-polymer microspheres by aqueous free radical-suspension polymerization
本文建立了在水体系中利用自由基-悬浮聚合法制备聚苯乙炔微球和苯乙炔/苯乙烯共聚物微球的方法,利用傅里叶红外光谱(FT-IR),核磁谱图(NMR)和拉曼光谱(Raman)等技术表征聚合物的结构。扫描电镜(SEM)照片表明,所制备的聚合物微球具有良好的分散性和非常光滑的表面。通过热重分析(TGA)方法表征了聚合物的热稳定性。所建立的自由基-悬浮聚合方法的优势在于,聚合体系中的分散剂甲苯极易除去,为获得纯净的聚炔微球提供了简单易行的新方法。
In this work, we estabilished a new methodology for preparing phenylacetylene-derived homo- and co-polymer microspheres via free radical polymerization in aqueous systerms. FT-IR, 1H NMR and Raman spectroscopy techniques were used to characterize the products. SEM images demonstrated that the microspheres possessed excellent dispersibility and smooth surface. TGA was conducted to characterize the thermal stability of the polymeric microspheres. The present study provided a versatile approach for producing pure acetylenic polymeric microspheres due to the easy removal of the dispersing agent. The methodology showed significant practical potentials in preparing novel acetylenic polymer microspheres.
李卫飞、余妍妍、邓建平、杨万泰
高分子化合物工业合成树脂工业、塑料工业
悬浮聚合自由基聚合苯乙炔苯乙烯微球
suspension polymerizationfree radical polymerizationphenylacetylenestyrenemicrospheres
李卫飞,余妍妍,邓建平,杨万泰.自由基-悬浮聚合法制备苯乙炔均聚物和共聚物微球[EB/OL].(2015-01-26)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/201501-422.点此复制
评论