Modified polyphenylene ether, process for preparing the same...

Details Modified polyphenylene ether, process for preparing the same... Modified polyphenylene ether, process for preparing the same...

C - Chemistry, Metallurgy

08

G

C08G 65/44 (2006.01) C08L 67/00 (2006.01) C08L 71/12 (2006.01) C09K 19/38 (2006.01)

Patent

CA 2120132

- 39 - ABSTRACT A modified polyphenylene ether comprising repeating units of the formula (1): Image (1) wherein R1 and R2 are, independently from each other, a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms and having a number average polymerization degree of 20 to 12,000, in which 0.02/X to 1/X of methyl groups at the 2- and/or 6-positions of phenylene group are substituted by an aminomethyl group wherein X is a number average polymerization degree, a process for preparing the same, and a thermoplastic resin composition containing (A) 1 to 75 % by weight of the above modified polyphenylene ether and (B) 99 to 25 % by weight of a liquid crystalline polyester. Since this modified polyphenylene ether includes a highly reactive primary amine on the polymer side chain, it is preferably used in a wide range as a component of various compositions or polymer alloys. The thermoplastic resin composition is excellent in heat resistance, mechanical properties and appearance and gloss of a molded article.

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