摘要
以二苯二羟硅烷Ph2Si（OH）2和钛酸四丁酯Ti（OBu）4为原料,利用本体聚合法合成了一种有机硅钛低聚物,并采用凝胶渗透色谱仪（GPC）、扫描电子能谱仪（EDS）、傅里叶红外光谱仪（FT-IR）、核磁共振仪（NMR）、质谱仪（MS）、X射线衍射仪（XRD）、热重分析仪（TGA）等对该低聚物进行了表征。结果表明,该低聚物由一系列分子量在517-1248之间的化合物构成,有些由Si—Ti键连接而成,也有些仅是二苯二羟基硅烷的低聚体。TGA研究表明,该低聚物在1000℃氮气氛中质量保持率为48.9%,具有较好的耐热性能。
Polytitanosiloxanes have been synthesized by reaction of diphenylsilanediol with tetrabutoxytitanium in a bulk polymerization system.The oligomers were characterized by gel permeation chromatography（GPC）,energy dispersive X-ray spectroscopy（EDS）,Fourier transform infrared spectroscopy（FT-IR）,nuclear magnetic resonance spectroscopy（NMR）,mass spectrometry（MS）,X-ray diffraction（XRD） and thermogravimetric analysis（TGA） methods.The results show that the oligomers were composed of a series of compounds with molecular weights in the range 517-1248.Some of the oligomers were oligo-polytitanosiloxanes,and some were just oligomers of diphenylsilanediol.The TGA study showed that the residue after heating the oligomers to 1000℃ in a nitrogen atmosphere was about 48.9% and that they had good thermal resistance.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第5期51-56,共6页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
关键词
二苯二羟硅烷
钛酸四丁酯
本体聚合
硅钛低聚物
diphenylsilanediol
tetrabutoxytitanium
bulk polymerization
polytitanosiloxane
