Synthesis and Properties of Poly(carbomethyloctylsiloxane)s by Melt Copolymerization of Bis(diethylamino)methyloctylsilane and Aryldiol Derivatives

Bulletin of the Korean chemical society

Seung Beom Yun¹  Young Tae Park¹ 

关键词: Polycarbosiloxanes;    Absorption;    Excitation;    Fluorescence;    Thermal stability;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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.

【 授权许可】

Unknown