Synthesis Of Non-Oxide Porous Ceramics Using Random Copolymers As Precursors
Keywords
Non-oxide porous ceramics; Polymer-derived ceramics; Random copolymer
Abstract
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°C to form random polysilazane-polystyrene copolymers. The copolymers were then pyrolyzed at 500°C to obtain porous ceramics by completely decomposing polystyrene (PS) and converting polysilazane (PSZ) into non-oxide Si-C-N ceramics. The obtained material contained a bi-model pore-structure consisting of both micro-sized and nano-sized pores with very high surface area of more than 500m2/g. We also demonstrated that the pore structure and surface area of the materials can be tailored by changing the ratio of the two blocks. Current results suggest a promising simple method for making multi-scaled porous non-oxide materials.
Publication Date
1-1-2015
Publication Title
Journal of Materials Science and Technology
Volume
31
Issue
1
Number of Pages
120-124
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1016/j.jmst.2014.04.008
Copyright Status
Unknown
Socpus ID
84922282393 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84922282393
STARS Citation
Wang, Xiaoqian; Wang, Kewei; Kong, Jie; Wang, Yiguang; and An, Linan, "Synthesis Of Non-Oxide Porous Ceramics Using Random Copolymers As Precursors" (2015). Scopus Export 2015-2019. 260.
https://stars.library.ucf.edu/scopus2015/260