期刊
POLYMER CHEMISTRY
卷 6, 期 12, 页码 2234-2240出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4py01552e
关键词
-
资金
- National Institute of Health [1U01DE023777-01]
- NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH [U01DE023777] Funding Source: NIH RePORTER
A series of thiol-Michael and radical thiol-ene network polymers were successfully prepared from esterfree as well as ester-containing monomer formulations. Polymerization reaction rates, dynamic mechanical analysis, and solvent resistance experiments were performed and compared between compositions with varied ester loading. The incorporation of ester-free alkyl thiol, vinyl sulfone and allylic monomers significantly improved the mechanical properties when compared with commercial, mercaptopropionate-based thiol-ene or thiol-Michael networks. For polymers with no hydrolytically degradable esters, glass transition temperatures (T-g's) as high as 100 degrees C were achieved. Importantly, solvent resistance tests demonstrated enhanced stability of ester-free formulations over PETMP-based polymers, especially in concentrated basic solutions. Kinetic analysis showed that glassy step-growth polymers are readily formed at ambient conditions with conversions reaching 80% and higher.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据