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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 

Synthesis and Properties of Poly(carbomethyloctylsiloxane)s by Melt Copolymerization of Bis(diethylamino)methyloctylsilane and Aryldiol Derivatives
Seung Beom Yun, Young Tae Park*
Polycarbosiloxanes, Absorption, Excitation, Fluorescence, Thermal stability
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.
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