ICCAS OpenIR
Structure and properties of hybrid poly(2-hydroxyethyl methacrylate)/SiO2 monoliths
Ji, XL; Jiang, SC; Qiu, XP; Dong, DW; Yu, DH; Jiang, BZ
2003-06-28
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume88Issue:14Pages:3168-3175
AbstractHybrid 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.
KeywordSilicas Radical Polymerization Structure Properties
DOI10.1002/app.12049
Indexed BySCI
Language英语
WOS IDWOS:000182425400016
PublisherJOHN WILEY & SONS INC
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80644
Collection中国科学院化学研究所
Corresponding AuthorJi, XL
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
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.
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