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空间稳定剂对聚苯胺在羰基铁粉表面原位沉积成膜的影响

作者:时间:2014-10-20点击数:

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.

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