聚芳醚酮气凝胶的制备与表征
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- 英文论文题名：Synthesis & characterization of Poly(aryl ether ketone)s Aerogel
- 论文作者：赵继永 ; 王志鹏 ; 王红华 ; 周光远
- 英文论文作者：Zhao Jiyong ; Wang Zhipeng ; Wang Honghua ; Zhou Guangyuan ; Key Laboratory of Polymer Ecomaterials ; Changchun Institute of Applied Chemistry ; Chinese Academy of Sciences ; University of Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院长春应用化学研究所/中科院生态环境高分子材料重点实验室;中国科学院大学;
- 论文关键词：气凝胶 ; 聚芳醚酮 ; 溶胶-凝胶法
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：O648.17
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：336k
- 原文格式：D
- 会议级别：全国
摘要
气凝胶(aerogel)因其独特的结构和性能,在隔热材料、催化剂载体、储能储氢材料等方面有广泛的应用前景。有机气凝胶比传统无机气凝胶具有更好的力学性能和加工性能,因此越来越受到关注~[1-3]。气凝胶制备的困难在于溶剂干燥过程中纳米孔由于表面张力作用而坍塌,因此提高纳米孔的强度和刚性是制备气凝胶的关键。本文对酚酞聚芳醚酮(PEK-C)的cardo环进行改性,接枝环氧基团,作为交联点,以DDS为交联剂,通过溶胶-凝胶法得到聚芳醚酮凝胶,经多步溶剂置换和常压干燥,得到如图所示具有连通微孔结构的材料。从SEM照片中看出,微孔结构有一定程度的坍塌,需要对凝胶结构和干燥条件进行进一步优化。
Aerogel exhibit wide application prospect in thermal insulation materials,catalyst carrier,energy storage and hydrogen storage materials due to its unique porous structure.To improve the mechanical and processing properties of the traditional inorganic aerogels,more and more attention has been paid to organic aerogel.The key point in preparing aerogel is enhancing the intensity of the pores,which is to avoid the collapse of the nanopores caused by surface tension.In this paper,the cardo ring in PEK-C is modified by grafting epoxy group as crosslinking point.PAEK gel is obtained through sol-gel process by adding crosslinking agent.After solvent substitution and ambient pressure drying,connected microporous material is obtained as shown in fig.1.A certain degree collapse can be seen from the SEM photos,therefore,it is necessary to further optimize the gel structure and drying condition.
Aerogel exhibit wide application prospect in thermal insulation materials,catalyst carrier,energy storage and hydrogen storage materials due to its unique porous structure.To improve the mechanical and processing properties of the traditional inorganic aerogels,more and more attention has been paid to organic aerogel.The key point in preparing aerogel is enhancing the intensity of the pores,which is to avoid the collapse of the nanopores caused by surface tension.In this paper,the cardo ring in PEK-C is modified by grafting epoxy group as crosslinking point.PAEK gel is obtained through sol-gel process by adding crosslinking agent.After solvent substitution and ambient pressure drying,connected microporous material is obtained as shown in fig.1.A certain degree collapse can be seen from the SEM photos,therefore,it is necessary to further optimize the gel structure and drying condition.
引文
[1]Pekala R W;Kong F M.Polymer Preprint,1989,30(16):221.
[2]Guo,H.;Meador,M.A.B.;McC orkle,L.;Quade,D.J.;Guo,J.;Hamilton,B.;Cakmak,M.;Sprowl,G.ACS Appl.Mater.Interfaces,2011,3:546.
[3]Qin Y.;Peng Q.;Ding Y.;Lin Z.;Wang C.;Li Y.;Li J.;Yuan Y.;He X.ACS NANO.2015,9(9):8933
[2]Guo,H.;Meador,M.A.B.;McC orkle,L.;Quade,D.J.;Guo,J.;Hamilton,B.;Cakmak,M.;Sprowl,G.ACS Appl.Mater.Interfaces,2011,3:546.
[3]Qin Y.;Peng Q.;Ding Y.;Lin Z.;Wang C.;Li Y.;Li J.;Yuan Y.;He X.ACS NANO.2015,9(9):8933