Synthesis and Properties of Linear Poly(ether sulfone)s with Hyperbranched Terminal Groups

Autor:	Keiichi Osano, Lauren Force, S. Richard Turner
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Ketone Linear polymer General Chemical Engineering Ether General Chemistry Polymer Industrial and Manufacturing Engineering Sulfone SULFONATED PHENOL chemistry.chemical_compound chemistry Polymer chemistry Copolymer Organic chemistry Ether cleavage
Zdroj:	Industrial & Engineering Chemistry Research. 49:12098-12103
ISSN:	1520-5045 0888-5885
Popis:	Linear−dendritic ABA copolymers, where A and B are hyperbranched and linear polymers, respectively, were synthesized by growing hyperbranched poly(ether ketone)s onto the ends of fluoro-terminated poly(ether sulfone)s. The unreacted fluoro-terminal groups of the hyperbranched polymers were capped by tert-butylphenol. The reactions were carried out at 90 °C to suppress ether cleavage. The results from NMR and SEC showed that multiple tert-butylphenol units were successfully attached to the terminal segments of the polymers. Analogous systems with sulfonated end groups were also synthesized by capping the fluoro terminal groups with a sulfonated phenol. This synthetic method is a versatile way to introduce multiple functional groups onto the ends of poly(ether sulfone)s.
Databáze:	OpenAIRE
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