Synthesis and Characterization of Novel Polyurethanes Based on Vegetable Oils Amide and Ester Polyols

被引:6
|
作者
Yakushin, Vladimir [1 ]
Stirna, Uldis [1 ]
Bikovens, Oskars [1 ]
Misane, Maria [1 ]
Sevastyanova, Irina [1 ]
Vilsone, Dzintra [1 ]
机构
[1] Latvian State Inst Wood Chem, LV-1006 Riga, Latvia
来源
MATERIALS SCIENCE-MEDZIAGOTYRA | 2014年 / 20卷 / 03期
关键词
poly(urethane amide); polyester urethane; vegetable oils; properties;
D O I
10.5755/j01.ms.20.3.4532
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Amide and ester type polyols were synthesized from rapeseed, sunflower and castor oils, and two types of ethanolamine (diethanolamine and triethanolamine) at different molar ratio. Poly(urethane amides) and polyester urethanes based on the synthesized polyols were prepared. The effect of the chemical structure of the obtained polyurethanes on density, glass transition temperature, thermal stability and mechanical properties was investigated. The influence of the content of OH groups in the synthesized polyols on the specified characteristics was estimated. It has been found that poly(urethane amides) have better mechanical characteristics, but their thermal stability is lower than that of polyester urethanes. The chemical structure of the synthesized polyols and polyurethanes is qualitatively confirmed by IR-spectroscopy data. Keywords: poly(urethane amide), polyester urethane, vegetable oils, properties.
引用
收藏
页码:277 / 282
页数:6
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