Step-Growth Polymerization of Poly(phenylcarbosilane) and Its Structural and Physical Properties

Yoon Joo Lee, Jung Hyun Lee, Soo Ryong Kim, Woo Teck Kwon, Moon Gun Choi, Y. H. Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The polymerization and molecular weight distribution of poly(phenylcarbosilane) (PPCS) depend on the temperature and pressure conditions under which it is synthesized using the Kumada rearrangement reaction. Its degree of polymerization is related not only to its physical properties such as solubility and boiling point but also to its chemical structure. In this study, soluble PPCS having a weight-average molecular weight (Mw) in the range of 2,500-3,000 was selectively isolated through distillation or fractional precipitation, and its chemical structure and physical properties were studied via FT-IR, NMR, GPC, and thermal analysis. The analytical data indicate that the Si-CH 2-Si backbone and Si-Si bond are formed through step-growth polymerization and are clearly detected after purification. The differences in the thermal behavior of PPCS in air and in nitrogen were also investigated.

Original languageEnglish
Pages (from-to)464-469
Number of pages6
JournalJournal of Inorganic and Organometallic Polymers and Materials
Volume22
Issue number2
DOIs
Publication statusPublished - 2012 Mar

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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