Cyanuric chloride as a potent catalyst for the reduction of curing temperature of benzoxazines

被引：24

作者：

Akkus, Buket ^{[1
]}

Kiskan, Baris ^{[1
]}

Yagci, Yusuf ^{[1
]}

机构：

[1] Istanbul Tech Univ, Sci & Literature Fac, Dept Chem, TR-34469 Istanbul, Turkey

来源：

POLYMER CHEMISTRY | 2020年 / 11卷 / 05期

关键词：

RING-OPENING POLYMERIZATION; EFFICIENT CATALYST; THERMAL-PROPERTIES; OXAZINE-RING; POLYBENZOXAZINE; 1,3-BENZOXAZINES; MONOMERS; MILD; DERIVATIVES; MECHANISM;

D O I：

10.1039/c9py01631g

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Cyanuric chloride (2,4,6-trichloro-1,3,5-triazine, TCT) was used as a catalyst to lower the ring opening polymerization (ROP) temperature of 1,3-benzoxazines. Dynamic scanning calorimeter (DSC) studies revealed that especially onset ROP temperatures were decreased as much as 75 degrees C for model benzoxazine compounds. The latent character of the catalyst was revealed spectroscopically by H-1 NMR and FTIR, and TCT remained dormant at RT and activated after certain temperatures. Moreover, thermal stabilities of the TCT catalyzed polybenzoxazines were analyzed and compared to those of uncatalyzed counterparts. Thermal properties of the polymers obtained in terms of both initial degradation temperatures and char yields at 800 degrees C did not significantly change.

引用

页码：1025 / 1032

页数：8

共 65 条

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