Synthesis of benzophenone-center bisphenol-A containing phthalonitrile monomer (BBaph) and its copolymerization with P-a benzoxazine

被引：35

作者：

Dayo, Abdul Qadeer ^{[1
,2
]}

Cao, Xin-man ^{[1
]}

Cai, Wan-an ^{[1
]}

Song, Sha ^{[1
]}

Wang, Jun ^{[1
]}

Zegaoui, Abdeldjalil ^{[1
]}

Derradji, Mehdi ^{[1
]}

Xu, Yi-le ^{[1
]}

Wang, An-ran ^{[1
]}

Liu, Wen-bin ^{[1
]}

Gong, Lin-dan ^{[1
]}

机构：

[1] Harbin Engn Univ, Inst Composite Mat, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China

[2] Balochistan Univ Informat Technol Engn & Manageme, Dept Chem Engn, Quetta 87300, Pakistan

来源：

REACTIVE & FUNCTIONAL POLYMERS | 2018年 / 129卷

基金：

中国国家自然科学基金;

关键词：

Phthalonitrile; Benzoxazine; Copolymerization; Synthesis and curing; Radiation resistance; THERMAL-PROPERTIES; RESINS; BISPHTHALONITRILE; POLYMERIZATION; POLYBENZOXAZINE; BLENDS;

D O I：

10.1016/j.reactfunctpolym.2017.10.016

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The benzophenone-center bisphenol-A containing phthalonitrile monomer (BBaph) was successfully produced by a nucleophilic substitution reaction of 4,4'-difluorobenzophenone with 4-nitrophthalonitrile and bisphenol-A in the presence of potassium carbonate. The chemical structure of the synthesized monomer was confirmed by H-1 nuclear magnetic resonance ('H NMR), C-13 NMR, and Fourier transform infrared spectroscopy (FTIR). The curing study of monomer was evaluated by the FTIR and DSC curves. The poly(BBaph) was subjected to gamma-ray irradiation with 100 kGy dose of Co-60 gamma radiation. The variation in chemical structure, mechanical, thermomechanical and thermal properties of poly(BBaph) was evaluated by FTIR, flexural, dynamic mechanical analysis (DMA), and thermogravimetric analysis (TGA), respectively. All results confirmed very minute deviation in the estimated properties before and after radiation. The BBaph monomer was blended with typical mono-functional benzoxazine (P-a) in different weight ratios. The DSC, DMA, and TGA tests were performed to study the properties of copolymers. The high glass transition temperature (164-227 degrees C), and stiffness values (2.72-3.03 GPa) was observed for the copolymers. The thermal stability was also improved after the loading of BBaph in P-a, recorded values were in the range of 367-408 degrees C, and 46.1-58.7% for 5% weight loss temperature and char yield at 800 degrees C, respectively.

引用

页码：46 / 52

页数：7

共 42 条

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