Title of article :
High-performance polymer alloys of polybenzoxazine and bismaleimide
Author/Authors :
Takeichi، نويسنده , , Tsutomu and Saito، نويسنده , , Yuki and Agag، نويسنده , , Tarek and Muto، نويسنده , , Hiroyuki and Kawauchi، نويسنده , , Takehiro، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2008
Pages :
7
From page :
1173
To page :
1179
Abstract :
Two series of high-performance polymer alloys were prepared by mixing typical benzoxine monomers, 3-phenyl-3,4-dihydro-2H-1,3-benzoxazine (P-a) or 6,6-(1-methylethyliden)-bis-(3,4-dihydro-3-phenyl-2H-1,3-benzoxazine) (B-a), with a typical bismaleimide, 4,4-bismaleimidodiphenyl methane by various ratios followed by thermal treatment up to 240 °C. DSC and IR of the alloys were examined to follow the curing reaction. These analyses showed that the obtained polymer alloys are AB co-cross-linked polymer networks through the formation of ether linkage between the hydroxyl group of polybenoxazine and the double bond of bismaleimide. Viscoelastic analysis and softening temperature measurement revealed that the polymer alloys have much higher glass transition temperatures than those of each homopolymer. The thermal stability also increased with the increase of bismaleimide content as evidenced by TGA.
Keywords :
Polymer alloy , Polybenzoxazine , Bismaleimide
Journal title :
Polymer
Serial Year :
2008
Journal title :
Polymer
Record number :
1731346
Link To Document :
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