PAN溶液组成对溶液性质及相转变影响研究  

Effect of PAN component on the solution characteristic and phase transversation

作　　者：李常清[1] 朱林[1] 马晓娜[1] 任磊[1] 徐樑华[1] 

机构地区：[1]北京化工大学碳纤维及功能高分子教育部重点实验室,北京100029

出　　处：《化工新型材料》2012年第7期78-80,共3页New Chemical Materials

基　　金：国家科技部973项目(2006CB605302;2006CB605303)

摘　　要：借助于旋转流变仪、紫外可见分光光度计和激光粒度仪等表征方法研究了不同组成聚丙烯腈(PAN)溶液的流变特性、分子光谱特性及对PAN溶液相转变的影响。结果表明:聚合物溶液的PAN含量越多,大分子缠结作用力越大,分子间相互作用越强烈,聚丙烯腈溶液的相转变越困难,大分子间的相互作用影响了聚丙烯腈溶液的相转变。The effect of PAN solution component on the rheological properties,molecular spectroscopy characteristic and phase transition of PAN/DMSO solution through rotary rheometer, UV--Vis spectrophotometer and laser particle size analyzer was studied. It showed that due to higher PAN content of polymer solution, the larger macromolecular entangle- ment force and the greater intermolecular interaction, polyacrylonitrile solution phase transition was more difficult.

关 键 词：PAN/DMSO溶液 分子间相互作用 溶液组成 流变特性 相转变 

分 类 号：TQ340.1[化学工程—化纤工业]