期刊
GREEN MATERIALS
卷 1, 期 1, 页码 16-26出版社
ICE PUBLISHING
DOI: 10.1680/gmat.12.00001
关键词
click-chemistry; green polymers; renewable resources; sustainable materials
Soybean vegetable oil was functionalized in a single step by addition of mercaptan with hydroxyl functions by thermal thiol-ene coupling. The synthesized biobased polyol was analyzed by nuclear magnetic resonance, titrations, size exclusion chromatography, and mass analyses to precisely determine its average functionality, thus allowing the use of the mixture of products without purification. This polyol was added to a prepolymer of 4, 4'-diisocyanate diphenylmethylene (MDI) with a ratio OH/NCO of 1, to synthesize partially bio-based polyurethane by step growth polymerization. The synthesized polyurethane was compared to polyurethane obtained from a commercial polyether polyol polyester, named desmophen 1150. Mixtures of these polyols were made to optimize the properties of the materials obtained. Polymerization was monitored by rheology. Polyurethanes were characterized by thermogravimetric analysis, differential scanning calorimetry, shore hardness, and tensile tests at different temperatures to determine their thermal and mechanical properties. Different materials present the characteristics of soft and ductile elastomers with thermal stability of polyurethanes.
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