Tartaric acid templated synthesis of mesoporous Ti-incorporated silica   and its catalytic activity for the ring-opening polymerization of   epsilon-caprolactone

CORC > 北京大学 > 化学与分子工程学院

	Tartaric acid templated synthesis of mesoporous Ti-incorporated silica and its catalytic activity for the ring-opening polymerization of epsilon-caprolactone
	Pang, JB ; Dong, CM ; Qiu, KY ; Wei, Y
刊名	高分子科学英文版
	2002
关键词	mesoporous material Ti-incorporated silica epsilon-caprolactone ring-opening polymerization sol-gel reactions SOL-GEL PROCESS MOLECULAR-SIEVES TITANIUM OXIDATION DIBLOCK ROUTE
英文摘要	Ti-incorporated mesoporous silica materials with pore diameters of 3-4 nm have been prepared via the co-hydrolysis and co-condensation reactions, that is the sol-gel reactions, of titanium (IV) tetrabutoxide and tetraethyl orthosilicate in the presence of tartaric acid as template, followed by extraction with ethanol to remove the template molecules. The materials were characterized in detail by Fourier transform infrared spectroscopy, nitrogen adsorption-desorption test, powder X-ray diffraction, transmission electron microscopy and X-ray energy dispersive spectroscopy. The results indicate that the Ti-containing silica materials have large specific surface areas (ca. 1200 m(2) g(-1) ) and pore volumes (ca. 0.900 cm(3) g(-1)). The mesoporosity arises from disordered interconnecting channels or pores. The Ti-incorporated silicas exhibit catalytic activity for the ring-opening polymerization of e-caprolactone, otherwise, the pure mesoporous silica material shows no catalytic activity under the identical conditions.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000176782300010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); 中国科学引文数据库(CSCD); 0; ARTICLE; 4; 361-368; 20
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/388367]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Pang, JB,Dong, CM,Qiu, KY,et al. Tartaric acid templated synthesis of mesoporous Ti-incorporated silica and its catalytic activity for the ring-opening polymerization of epsilon-caprolactone[J]. 高分子科学英文版,2002.
APA	Pang, JB,Dong, CM,Qiu, KY,&Wei, Y.(2002).Tartaric acid templated synthesis of mesoporous Ti-incorporated silica and its catalytic activity for the ring-opening polymerization of epsilon-caprolactone.高分子科学英文版.
MLA	Pang, JB,et al."Tartaric acid templated synthesis of mesoporous Ti-incorporated silica and its catalytic activity for the ring-opening polymerization of epsilon-caprolactone".高分子科学英文版 (2002).