Thermoset Coatings from Epoxidized Sucrose Soyate and Blocked, Bio-Based Dicarboxylic Acids

被引：54
|
作者：
Kovash, Curtiss S., Jr. [1 ]
Pavlacky, Erin [1 ]
Selvakumar, Sermadurai [2 ]
Sibi, Mukund P. [2 ]
Webster, Dean C. [1 ]
机构：
[1] N Dakota State Univ, Dept Coatings & Polymer Mat, Fargo, ND 58108 USA
[2] N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA
来源：
CHEMSUSCHEM | 2014年 / 7卷 / 08期
基金：
美国国家科学基金会;
关键词：
bio-based; carboxylic acid; coating; epoxidized sucrose soyate; thermosetting;
D O I：
10.1002/cssc.201402091
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new 100% bio-based thermosetting coating system was developed from epoxidized sucrose soyate crosslinked with blocked bio-based dicarboxylic acids. A solvent-free, green method was used to block the carboxylic acid groups and render the acids miscible with the epoxy resin. The thermal reversibility of this blocking allowed for the formulation of epoxy-acid thermoset coatings that are 100% bio-based. This was possible due to the volatility of the vinyl ethers under curing conditions. These systems have good adhesion to metal substrates and perform well under chemical and physical stress. Additionally, the hardness of the coating system is dependent on the chain length of the diacid used, making it tunable.
引用
收藏
页码：2289 / 2294
页数：6
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