Photo-polymerization of photocurable resins containing polyhedral oligomeric silsesquioxane methacrylate

被引：21

作者：

Lin, Ho-May ^{[1
,2
]}

Wu, Shi-Yin ^{[2
]}

Chang, Feng-Chih ^{[1
]}

Yen, Ying-Chieh ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan

[2] Ind Technol Res Inst, Mat & Chem Res Labs, Chutung 31040, Taiwan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 131卷 / 1-2期

关键词：

Polyhedral oligomeric silsesquioxanes (POSSs); Photocurable resins; Hydrogen bonding; Acrylate monomer; THERMAL-PROPERTIES; KINETICS; NANOCOMPOSITES; MONOMERS; EPOXY; DIMETHACRYLATE; MISCIBILITY; COPOLYMERS; REACTIVITY;

D O I：

10.1016/j.matchemphys.2011.09.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photocurable resins, bisphenol A propoxylate glycerolate diacrylate (BPA-PGDA, containing two hydroxyl) and bisphenol A propoxylate diacrylate (BPA-PDA), with fixed photoinitiator (Irgacure 907) concentration and various contents of methacrylisobutyl polyhedral oligomeric silsesquioxane (MI-POSS) were prepared and characterized by FTIR spectroscopy, scanning electron microscope and differential photocalorimetry. The MI-POSS molecules form crystals or aggregated particles in the cured resin matrix. The BPA-PGDA series photocurable resins show higher viscosity and lower photo-polymerization reactivity than the BPA-PDA series resins. The photo-polymerization rate and conversion of BPA-PGDA series are improved with increasing MI-POSS content. On the contrary, the photo-polymerization behavior of BPA-PDA series photocurable resins remains nearly unchanged by the addition of MI-POSS. Hydrogen-bonding interaction between the hydroxyl of BPA-PGDA and the siloxane of MI-POSS tends to attract and concentrate these acrylate double bonds around MI-POSS particles and thus enhances the photo-polymerization rate and conversion. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：393 / 399

页数：7

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