Effect of (meth)acrylates on in situ visible light polymerization of dimethacrylamide

Bulletin of Materials Science

YULING XU^1,2¹  DONG XIE^2² 

[1] College of Chemical and Environmental Engineering, Wuhan Polytech University, Wuhan, Hubei 430062, People’s Republic of China^1;Department of Biomedical Engineering, Indiana University—Purdue University at Indianapolis, Indianapolis 46202, USA^2

关键词: Dimethacrylamide;    visible light polymerization;    degree of conversion;    compressive strength.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

This study reports in situ visible light copolymerization of a synthesized dimethacrylamide with the selected (meth)acrylates. The effects of these selected comonomers with different functional groups on the polymerization rate, degree of conversion, gel time and compressive strength were investigated. The results showed that in situ copolymerization of the dimethacrylamide with the comonomers having an electron-withdrawing and/or acrylate group could significantly increase the polymerization rate, degree of conversion and compressive strength. Contrarily, an electron-donating group on either carbon–carbon double bond or ester linkage could slow down the polymerization. In comparison, its methacrylate counterpart, triethylene glycol dimethacrylate-based system did not show a clear pattern. The formed H-bonds between (meth)acrylamide and organic acid groups may be responsible for higher compressive strengths. Within the limitation of this study, it is concluded that in situ polymerization of dimethacrylamide under visible light can be accelerated by copolymerization with monomers having electron-withdrawing and/or acrylate groups and vice versa.

【 授权许可】

CC BY