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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 29, Number 12
BKCSDE 29(12)
December 20, 2008 

 
Title
Synthesis and Properties of Poly(carbomethyloctylsiloxane)s by Melt Copolymerization of Bis(diethylamino)methyloctylsilane and Aryldiol Derivatives
Author
Seung Beom Yun, Young Tae Park*
Keywords
Polycarbosiloxanes, Absorption, Excitation, Fluorescence, Thermal stability
Abstract
We carried out the melt copolymerizations of bis(diethylamino)methyloctylsilane with several aryldiols to afford poly(carbomethyloctylsiloxane)s containing fluorescent aromatic chromophore groups in the polymer main chain: poly(oxybiphenyloxymethyloctyl silane), poly(oxy(4,4'-isopropylidene)diphenyleneoxymethyloctylsilane), poly(oxy(4,4'-hexafluoroisopropylidene)diphenyleneoxymethyloctylsilane), poly(oxy-2,6-naphthalenediyloxymethyloctylsilane), and poly(oxyphenyleneoxymethyloctylsilane). These materials are soluble in common organic solvents such as CHCl3 and THF. FTIR spectra of all the polymeric materials show the characteristic Si-O-C stretching frequencies at 1051-1082 cm?1. The polymers in THF solution exhibit strong maximum absorption peaks at 263-341 nm with the strong maximum excitation peaks at 253-325 nm, and strong maximum fluorescence emission bands at 300-420 nm. According to TGA all the polymers are stable up to 200 oC with weight loss of less than 9% in nitrogen.
Page
2373 - 2378
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