Synthesis and crystallization of a novel poly(ether ketone ether ketone ketone) containing meta-phenylene linkage: PEKEKK(T/I)
Data(s) |
2000
|
---|---|
Resumo |
Poly(ether ketone ether ketone ketone) containing meta-phenylene linkage (PEKEKK(T/I)) was synthesized by electrophilic Friedel-Crafts acylation condensation of 1, 4-diphenoxybenzophenone with terephthaloyl chloride (T) and isophthaloyl chloride (I) with a T/I ratio of 1 and characterized by LR,DSC,TGA and WAXD. PEKEKK(T/I) has two different crystal structures: a conventional Farm I structure, the same as that observed in PEEK and PEK, wich is usually developed from melt crystallization, and a new Form II structure which can be developed from cold crystallization or solvent induced crystallization (by exposing the glassy sample to methylene chloride). |
Identificador | |
Idioma(s) |
中文 |
Fonte |
Qiu ZB;Chen QY;Sheng SR;Song CS;Mo ZS.Synthesis and crystallization of a novel poly(ether ketone ether ketone ketone) containing meta-phenylene linkage: PEKEKK(T/I),ACTA POLYMERICA SINICA,2000,(4):499-501 |
Palavras-Chave | #CRYSTAL MORPHOLOGY #POLYMORPHISM #IDENTIFICATION #COPOLYMERS |
Tipo |
期刊论文 |