Structure and properties of hybrid poly(2-hydroxyethyl methacrylate)/SiO2 monoliths

doi:10.1002/app.12049

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	Structure and properties of hybrid poly(2-hydroxyethyl methacrylate)/SiO2 monoliths
	Ji, XL; Jiang, SC; Qiu, XP; Dong, DW; Yu, DH; Jiang, BZ
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2003-06-28
卷号	88 期号:14 页码:3168-3175
关键词	Silicas Radical Polymerization Structure Properties
ISSN号	0021-8995
DOI	10.1002/app.12049
英文摘要	Hybrid poly(2-hydroxyethyl methacrylate) (PHEMA)/SiO2 monoliths were synthesized via a sol-gel process of the precursor tetraethyl orthosilicate (TEOS) and the in situ free-radical polymerization of 2-hydroxyethyl methacrylate (HEMA). The weight ratio of the starting chemicals, TEOS to HEMA, was varied between 100/0 and 0/100. Structural analysis was performed by IR and NMR. The NMR results indicated that the introduction of PHEMA in the silica networks gave rise to a lower degree of condensation of TEOS. The resulting monoliths showed more than 75% transmittance in the visible region, that is, good transparency. Mechanical properties were studied with an Instron tester, and the monoliths exhibited better compressive strength and modulus than did bulk PHEMA. Surprisingly, thermogravimetric analysis (TGA) data showed greater than 50 wt % solid residue up to 700degreesC, possibly related to some degree of chemical crosslinking between the polymer and the silica moiety, which would greatly improve the thermal stability of such hybrid monoliths compared with a pure PHEMA. (C) 2003 Wiley Periodicals, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000182425400016
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/80643]
专题	中国科学院化学研究所
通讯作者	Ji, XL
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Ji, XL,Jiang, SC,Qiu, XP,et al. Structure and properties of hybrid poly(2-hydroxyethyl methacrylate)/SiO2 monoliths[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2003,88(14):3168-3175.
APA	Ji, XL,Jiang, SC,Qiu, XP,Dong, DW,Yu, DH,&Jiang, BZ.(2003).Structure and properties of hybrid poly(2-hydroxyethyl methacrylate)/SiO2 monoliths.JOURNAL OF APPLIED POLYMER SCIENCE,88(14),3168-3175.
MLA	Ji, XL,et al."Structure and properties of hybrid poly(2-hydroxyethyl methacrylate)/SiO2 monoliths".JOURNAL OF APPLIED POLYMER SCIENCE 88.14(2003):3168-3175.