Synthesis of polyphenylcarbosilane via thermal rearrangement of polymethylphenylsilane in supercritical cyclohexane

• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: Hee-Yong Shin Jae-Hun Ryu Seong-Youl Bae Yoon-Joo Lee Woo-Teck Kwon Young-Hee Kim Soo-Ryong Kim
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제30권 제1호, 9~15쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2013.03.30

영문 초록

A new process for the synthesis of polyphenylcarbosilane (PPCS) via thermal rearrangement of polymethylphenylsilane (PMPS) in supercritical cyclohexane was proposed and investigated at reaction temperatures of 380-420℃, reaction times of 1-2 h, and a pressure of 15 MPa. The structure, molecular weight, and molecular weight distribution of the product were characterized by FT-IR, Si-NMR, and GPC. The ceramic yield was also measured by TGA analysis. High-quality PPCS with high molecular weight and ceramic yield can be synthesized via a supercritical process. Furthermore, this process, when compared to the conventional method, tends to moderate the reaction conditions such as reaction temperature and time. It is concluded that thermal rearrangement in supercritical fluid is an efficient and viable process in terms of the resulting yield, efficiency, and reaction time compared with those of the conventional PCS production process.

목차

1. Introduction

2. Experimental

3. Results and discussion

4. Conclusions

References

키워드

polyphenylcarbosilane polymethylphenylsilane SiC supercritical cyclohexane thermal rearrangement