Study on the phthalonitrile cured via bio-tyrosine cyclic peptide: Achieving good thermal properties under low post-curing temperature

被引：23

作者：

He, Xian ^{[1
]}

Liao, Shenjun ^{[1
]}

Chen, Menghao ^{[1
]}

Li, Renke ^{[1
]}

Liu, Yao ^{[1
]}

Liang, Bo ^{[1
]}

Hu, Jianghuai ^{[1
]}

Zeng, Ke ^{[1
]}

Yang, Gang ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2020年 / 181卷

基金：

中国博士后科学基金;

关键词：

Phthalonitrile; Tyrosine; Cyclic peptide; Low post-curing temperature; HIGH-PERFORMANCE; PROTON-EXCHANGE; RESINS; POLYMERS; MONOMERS; AMIDES; ETHER;

D O I：

10.1016/j.polymdegradstab.2020.109289

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Tyrosine derived cyclic peptide (TCP) was employed to promote the curing reaction of a phthalonitrile monomer 1,3-bis(3,4-dicyanophenoxy) (3BOCN). Differential scanning calorimetry (DSC) and rheological analysis were used to study the curing behaviors of the TCP/3BOCN blend and confirmed a relatively high curing efficiency. Fourier transform infrared spectrometer (FT-IR) and two-dimensional infrared vibrational echo spectroscopy suggested the cyclic peptide reactive site was responsible for the unique curing behavior. Isoindolin, phthalocyanine and triazine were confirmed as curing products. Thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA) were used to measure the thermal and thermomechanical properties of the cured resin. The results firstly revealed the excellent thermal stability and high glass transition temperature (T-g) of this resin even under a moderate post-curing condition. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：10

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