Synthesis of Non-oxide Porous Ceramics Using Random Copolymers as Precursors

作     者：Xiaoqian Wang Kewei Wang Jie Kong Yiguang Wang Linan An 

作者机构：State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University Science and Technology on Thermo structural Composite Materials LaboratoryNorthwestern Polytechnical University Department of Applied ChemistrySchool of ScienceNorthwestern Polytechnical University Department of Materials Science and EngineeringAdvanced Materials Processing and Analysis CenterUniversity of Central Florida 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2015年第31卷第1期

页      面：120-124页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.21174112 and 51242009) the Research Fund of State Key Laboratory of Solidification Processing(Grant No.82-TZ-2013) the project "111"(B08040) the grant of the New Century Excellent Talents of Education Ministry of China(NCET-110817) 

主　　题：Non-oxide porous ceramics Polymer-derived ceramics 

摘      要：In this paper,we reported a novel method for synthesis of non-oxide porous ceramics by using random copolymers as precursors.A silazane oligomer and styrene monomer were used as starting materials,which were copolymerized at 120 ℃ to form random polysilazane-polystyrene *** copolymers were then pyrolyzed at 500 ℃ to obtain porous ceramics by completely decomposing polystyrene（PS） and converting polysilazane（PSZ） into non-oxide Si-C-N *** obtained material contained a bi-model pore-structure consisting of both micro-sized and nano-sized pores with very high surface area of more than500 m;/*** also demonstrated that the pore structure and surface area of the materials can be tailored by changing the ratio of the two *** results suggest a promising simple method for making multiscaled porous non-oxide materials.