| Home  | About ScienceAsia  | Publication charge  | Advertise with us  | Subscription for printed version  | Contact us  
Editorial Board
Journal Policy
Instructions for Authors
Online submission
Author Login
Reviewer Login
Volume 50 Number 1
Volume 49 Number 6
Volume 49 Number 5
Volume 49S Number 1
Volume 49 Number 4
Volume 49 Number 3
Earlier issues
Back

Research Article

ScienceAsia 19 (1993): 103-115 |doi: 10.2306/scienceasia1513-1874.1993.19.103

 

SYNTHESIS, CHARACTERIZATION, AND STRUCTURAL INVESTIGATION OF POLY(DIETHYLSILYLENE)

 

S. DHUMRONGVARAPORNa AND H. KYOTANIb

ABSTRACT: Poly(diethylsilylene) was synthesized by dechlorination of diethyldi-chlorosilane with 40% sodium dispersed in mineral oil. Toluene was employed as a solvent. The polymer was characterized by FT-IR and NMR spectroscopies. Preliminary investigation of its structure was studied by GPC, DSC, X-Ray diffractions, and UV spectroscopy. The yield and molecular weights were found to depend on the reaction condition. The polymer was also found to be highly crystalline, and the higher molecular weight one gave the higher order-disorder transition temperature and the higher wavelength number of UV absorption maximum. The highest molecular weight one was insoluble in any kind of solvents.

Download PDF

a The Petroleum and Petrochemical College, Chulalongkorn University, Thailand.
b National Institute of Material and Chemicals Research, Tsukuba, Japan.

Received July 9, 1993