A novel bio-based phthalonitrile resin derived from catechin: synthesis and comparison of curing behavior with petroleum-based counterpart

被引：31
作者：
Qi, Yu [1 ,2 ]
Weng, Zhihuan [1 ,2 ]
Wang, Jinyan [1 ,2 ]
Zhang, Shouhai [1 ,2 ]
Zong, Lishuai [1 ,2 ]
Liu, Cheng [1 ,2 ]
Jian, Xigao [1 ,2 ]
机构：
[1] Dalian Univ Technol, Dept Polymer Sci & Mat, Liaoning High Performance Resin Engn Res Ctr, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, State Key Lab Fine Chem, Dalian, Peoples R China
来源：
POLYMER INTERNATIONAL | 2018年 / 67卷 / 03期
关键词：
bio-based; phthalonitrile resin; self-curing; catechin; thermosetting; CYANATE ESTER RESINS; EPOXY-RESIN; THERMOSETTING RESINS; THERMAL-STABILITY; TEMPERATURE; KINETICS; FUTURE; ETHER; PERFORMANCE; POLYMERS;
D O I：
10.1002/pi.5507
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The development of bio-based thermosetting resins with good thermal stability can potentially afford sustainable polymers as replacements for petroleum-based polymers. We report a practical route to a novel catechin-based phthalonitrile resin precursor (CA-Ph), which contains free phenolic hydroxyl groups that result in self-curing' at elevated temperatures to afford a thermostable polymer. Comparison of the performance of this CA-Ph resin with that of a conventional petroleum-based bisphenol A phthalonitrile resin (BPA-Ph; containing 5wt% of the curing agent 4,4-diaminodiphenylsulfone) revealed that CA-Ph exhibits a lower melting point and curing temperature. Cured CA-Ph resin retains 95% of its weight at 520 degrees C under a nitrogen atmosphere, which compares favorably with results obtained for BPA-Ph resin that retains 95% of its weight at a lower temperature of 484 degrees C. Kinetic results indicated that the curing reactions of both CA-Ph and BPA-Ph systems follow an autocatalytic mechanism. These results suggest that catechin is a useful bio-based feedstock for the preparation of self-curing and thermally stable phthalonitrile resins for advanced technological applications. (c) 2017 Society of Chemical Industry
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收藏
页码：322 / 329
页数：8
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