Controlled synthesis and ceramization of well-defined Fe/Si/C ceramic precursors by living anionic polymerization

Qian Ce Zhang, Yan Zi Gou, Yi Fei Wang, Teng Fei Mao, Nan Wu, Xuan Tong

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

Two kinds of iron-containing ceramic precursors, PFS and PS-b-PFS, were synthesized via living anionic polymerization by using ferrocenyldimethylsilane and styrene as the monomers. The structures, elemental compositions and molecular weights were characterized by FT-IR, NMR, EDS and GPC, respectively. The homopolymerization of ferrocenyldimethylsilane was simulated using computational chemistry method. The copolymerization between ferrocenyldimethylsilane and styrene was investigated by altering the ratio between monomers and initiator (n-butyllithium). The experimental results indicated that the Mn, Mw and PDi of homopolymer PFS were 6.91×103 g/mol, 8.29×103 g/mol and 1.20, respectively. Moreover, the molecular weight, structure and composition of block copolymers PS-b-PFS, were successfully controlled by changing the ratio of styrene, n-butyllithium and ferrocenyldimethylsilane. Subsequently, using such iron-containing polymers as precursors, Fe/Si/C ceramics were obtained after sintering at 1400°C. The microstructures, morphologies and elemental compositions of ceramics were characterized by SEM and EDS. The results implied the controllable preparation of spherical Fe/Si/C ceramics was achieved via the self-assembly of precursors.

Original languageEnglish
Title of host publicationFunctional Materials Research
EditorsYuxun Wang, Guichun Huang, Linqing Luo
PublisherTrans Tech Publications Ltd
Pages579-584
Number of pages6
ISBN (Print)9783038357551
DOIs
Publication statusPublished - 2016
EventChina Functional Material Technology and Industry Forum, CFMTIF 2015 - Hunan, China
Duration: 30 Oct 20151 Nov 2015

Publication series

NameMaterials Science Forum
Volume852
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChina Functional Material Technology and Industry Forum, CFMTIF 2015
Country/TerritoryChina
CityHunan
Period30/10/151/11/15

Bibliographical note

Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.

Keywords

  • Ceramics
  • Ceramization
  • Living anionic polymerization
  • Precursor

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