PDF全文下载：2011030281
李国伟， 杨彬， 左培艳， 吴其晔*
(青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛 266042)
摘要: 通过原位聚合法制备了羰基铁粉/聚苯胺（CIP/PANI）复合材料，分别采用高分子量PVP-K90、低分子量PVP-K30和小分子表面活性剂吐温-20作为分散聚合的空间稳定剂，考察了空间稳定剂种类和PVP-K90的浓度对PANI在羰基铁粉表面原位沉积成膜的影响，并简要讨论其稳定机理。结果表明：采用分散聚合，以高分子量PVP-K90为空间稳定剂时可制备形貌良好的CIP/PANI核壳结构复合物；以低分子量PVP以及小分子表面活性剂时不能很好地稳定聚苯胺成膜。空间稳定剂浓度和种类变化时CIP/PANI复合物的电导率变化不大，在10-2 S·cm-1左右。
关键词: 聚苯胺; 羰基铁粉; 原位聚合; 空间稳定剂
中图分类号: O 063文献标志码： A
Effect of Space Stabilizer on Polyaniline Film Prepared by In-situ Deposition on Surface of Carbonyl Iron Powder
LI Guo-wei, YANG Bin, ZUO Pei-yan, WU Qi-ye
(Key Laboratory of Rubber-plastics, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: Carbonyl iron powder(CIP)/polyaniline (PANI) microspheres with core/shell structure had been synthesized via a simple in situ polymerization method. Effect of stabilization of space stabilizer on the morphologies and conductivity of the synthesized products were characterized. The results indicated that when the PVP of a higher relative molecular mass was adorpted, a more compact surface structure could be formed and the PANI particles changed from rods to spheres with the PVP concentration increasing appropriately. While poor surfance CIP/PANI products were prepared, when adopting PVP of a lower relative molecular mass and the the small molecule surfactants.
Key words: polyaniline; carbonyl iron powders; in-situ polymerization; stabilizer
收稿日期: 2010-11-26
基金项目: 国家自然科学基金资助项目(50390090).
作者简介: 李国伟（1985—）,男，硕士研究生.*通信联系人.
