Use of Hempseed-Oil-Derived Polyacid and Rosin-Derived Anhydride Acid as Cocuring Agents for Epoxy Materials,ACS Sustainable Chemistry & Engineering

当前位置： X-MOL 学术 › ACS Sustain. Chem. Eng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Use of Hempseed-Oil-Derived Polyacid and Rosin-Derived Anhydride Acid as Cocuring Agents for Epoxy Materials
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-02-07 00:00:00 , DOI: 10.1021/acssuschemeng.7b04399
Ran Li ₁ , Pei Zhang ₁ , Tuan Liu ₁ , Balasingam Muhunthan ₂ , Junna Xin ₁ , Jinwen Zhang ₁

Affiliation

A poly(carboxylic acid) [hempseed oil (HO)-polyacid] was prepared from the fatty acids of hempseed oil and used as a curing agent for epoxies. Polyunsaturated fatty acid (C18:2 and C18:3) that composed ∼77% of the hempseed oil fatty acid (HOFA) were introduced more carboxylic groups by conjugation followed by Diels–Alder addition with maleic anhydride and hydrolysis. This conversion process was further confirmed using pure methyl linolenate as a model compound. In addition, a rosin-derived anhydride acid, maleopimaric acid (MPA) that has a rigid molecular structure, was used as a cocuring agent. Effects of the HO-polyacid/MPA cocuring agents in different ratios on the curing behavior, dynamic mechanical properties, thermal stability, and flexural properties of a commercial bisphenol A epoxy were studied. The results suggest the balance of stiffness/flexibility of the cured resins was effectively regulated by varying the cocuring agent ratio.

中文翻译：

大麻油衍生的多元酸和松香衍生的酸酐酸作为环氧材料的共固化剂

由大麻籽油的脂肪酸制备聚羧酸[麻籽油（HO）-多元酸]，并将其用作环氧树脂的固化剂。约占亚麻籽油脂肪酸（HOFA）77％的多不饱和脂肪酸（C18：2和C18：3）通过共轭引入了更多的羧基，然后通过马来酸酐加Diels-Alder加成并水解。使用纯亚麻酸甲酯作为模型化合物进一步证实了该转化过程。另外，具有刚性分子结构的松香衍生的酸酐酸，马来海马酸（MPA）被用作共固化剂。研究了不同比例的HO-多元酸/ MPA共聚剂对市售双酚A环氧树脂的固化行为，动态力学性能，热稳定性和挠曲性能的影响。

更新日期：2018-02-07

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南