Publication:
Property enhancement of polybenzoxazine modified with dianhydride

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Issued Date

2011

Resource Type

Article

File Type

application/pdf

ISSN

1413910

DOI

10.1016/j.polymdegradstab.2011.03.021

Other identifier(s)

2-s2.0-79955577362

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Polymer Degradation and Stability. Vol 96, No.6 (2011), p.1047-1053

Suggested Citation

Jubsilp C., Takeichi T., Rimdusit S. Property enhancement of polybenzoxazine modified with dianhydride. Polymer Degradation and Stability. Vol 96, No.6 (2011), p.1047-1053. doi:10.1016/j.polymdegradstab.2011.03.021 Retrieved from: https://hdl.handle.net/20.500.14740/7327

Title

Property enhancement of polybenzoxazine modified with dianhydride

Author(s)

Jubsilp C.
 Takeichi T.
 Rimdusit S.

Abstract

A novel bisphenol-A-aniline type polybenzoxazine (PBA-a) modified with dianhydride was successfully prepared by reacting bisphenol-A-aniline based benzoxazine (BA-a) resin with 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA) in 1-methyl-2-pyrrolidone (NMP) solvent. The miscible monomer mixture was easily transformed into transparent PBA-a/BTDA copolymers by thermal cure. Fourier-transform infrared spectroscopy reveals the formation of ester linkage which is a covalent interaction between hydroxyl group of the PBA-a and the carbonyl group in the dianhydride. The PBA-a/BTDA copolymers show only one glass transition temperature (Tg) with the value as high as 263 °C at BA-a:BTDA = 1.5:1 mol ratio. The value is remarkably higher than that of the unmodified PBA-a, i.e. 160 °C. In addition, the resulting PBA-a/BTDA copolymers display relatively high degradation temperature up to 364 °C and substantial enhancement in char yield with a value of up to 61% by weight. Moreover, flexibility of the PBA-a/BTDA copolymer samples is also significantly enhanced compared to the unmodified PBA-a. The obtained copolymer demonstrates high potential for those applications that require high thermal and mechanical properties with fire resistant characteristics. © 2011 Elsevier Ltd. All rights reserved.

Subject(s)

1-methyl-2-pyrrolidone
 Benzophenonetetracarboxylic dianhydride
 Benzoxazine
 Bisphenol A
 Carbonyl groups
 Char yield
 Covalent interactions
 Degradation temperatures
 Ester linkages
 Fire resistant
 Glass transition temperature
 High potential
 High thermal
 Hydroxyl groups
 Monomer mixtures
 Polybenzoxazine
 Thermal property
 Thermosetting polymers
 Aniline
 Copolymers
 Esters
 Glass transition
 Infrared spectroscopy
 Mechanical properties
 Organic polymers
 Phenols
 Plastic products
 Resins
 Thermodynamic properties
 Thermosets
 Copolymerization

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URI

https://hdl.handle.net/20.500.14740/7327

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Scopus: Year 1983-2021

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