Synthesis,characterization of PT-ala resin and thermal degradation kinetics of its polymer

doi:10.3969/j.issn.0438-1157.2013.10.049

CIESC Journal ›› 2013, Vol. 64 ›› Issue (10): 3851-3857.DOI: 10.3969/j.issn.0438-1157.2013.10.049

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Synthesis,characterization of PT-ala resin and thermal degradation kinetics of its polymer

WANG Qidong¹, SHI Tiejun¹, XU Guomei^1,2

1. School of Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China;
2. Department of Materials and Chemical Engineering, West Anhui University, Lu'an 237012, Anhui, China

Received:2013-03-07 Revised:2013-04-01 Online:2013-10-05 Published:2013-10-05
Supported by:
supported by the National Natural Science Foundation of China(51273054).

酚酞烯丙胺型苯并噁嗪树脂的合成、表征及其聚合物的热分解动力学

王启东¹, 史铁钧¹, 徐国梅^1,2

1. 合肥工业大学化工学院, 安徽合肥 230009;
2. 皖西学院材料与化工学院, 安徽六安 237012

通讯作者: 史铁钧
作者简介:王启东(1990-),男,硕士研究生。
基金资助:
国家自然科学基金项目(51273054)

Abstract

Abstract: Novel allyl-containing phenolphthalein benzoxazine(PT-ala resin)was synthesized from phenolphthalein,allylamine and paraformaldehyde.The chemical structure of PT-ala resin was characterized by FT-IR,¹H NMR,and the curing behavior of PT-ala resin was studied by DSC.TG and DTG were used to study the thermal degradation kinetics of PT-ala resin in N₂.The kinetic parameters were calculated by the methods of Kissinger and Ozawa,and the apparent degradation reaction order of PPT-ala was 1 in N₂,thermal degradation activation energies were 189.65 kJ·mol^-1 and 215.11 kJ·mol^-1 respectively.The temperature of 60 s lifetime was 285℃ in N₂.

Key words: allyl, benzoxazine, thermal degradation kinetics, activation energy

摘要： 以酚酞、烯丙胺、多聚甲醛为原料,合成了具有烯丙基的新型酚酞型苯并嗪树脂(PT-ala)。用FT-IR、¹H NMR和DSC表征了其结构和固化特性,并用TG-DTG方法对其聚合物在氮气中的热分解过程动力学进行了详细的研究。结果表明:用Kissinger法和Ozawa法求得的聚合物热分解活化能分别为189.65 kJ·mol^-1和215.11 kJ·mol^-1;用Coats-Redfern法证实了酚酞烯丙胺型聚苯并嗪的热分解反应为一级反应;在氮气氛中维持60 s寿命的最高使用温度为285℃。

关键词: 烯丙基, 苯并嗪, 热分解动力学, 活化能

CLC Number:

O631.2+2

WANG Qidong, SHI Tiejun, XU Guomei. Synthesis,characterization of PT-ala resin and thermal degradation kinetics of its polymer[J]. CIESC Journal, 2013, 64(10): 3851-3857.

王启东, 史铁钧, 徐国梅. 酚酞烯丙胺型苯并噁嗪树脂的合成、表征及其聚合物的热分解动力学[J]. 化工学报, 2013, 64(10): 3851-3857.

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Synthesis,characterization of PT-ala resin and thermal degradation kinetics of its polymer

酚酞烯丙胺型苯并噁嗪树脂的合成、表征及其聚合物的热分解动力学

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