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 1

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Structural properties
Physical properties
Polymerization
Boiling point
Molecular weight distribution
Distillation
Thermoanalysis
Purification
Nitrogen
Solubility
Molecular weight
Nuclear magnetic resonance
Air
Temperature
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Lee, Yoon Joo ; Lee, Jung Hyun ; Kim, Soo Ryong ; Kwon, Woo Teck ; Choi, Moon-Gun ; Kim, Y. H. / Step-Growth Polymerization of Poly(phenylcarbosilane) and Its Structural and Physical Properties. In: Journal of Inorganic and Organometallic Polymers and Materials. 2012 ; Vol. 22, No. 2. pp. 464-469.
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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.",
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Step-Growth Polymerization of Poly(phenylcarbosilane) and Its Structural and Physical Properties. / Lee, Yoon Joo; Lee, Jung Hyun; Kim, Soo Ryong; Kwon, Woo Teck; Choi, Moon-Gun; Kim, Y. H.

In: Journal of Inorganic and Organometallic Polymers and Materials, Vol. 22, No. 2, 01.03.2012, p. 464-469.

Research output: Contribution to journalArticle

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