A Novel Approach to Processing High-Performance Polymers that Exploits Entropically Driven Ring-Opening Polymerization

Blends of the poly(ether sulfone) derived from 4,4′‐biphenol and 4,4′‐dichlorodiphenylsulfone (Radel‐R™) with its homologous macrocyclic oligomers show greatly lowered melt viscosities relative to that of the parent polymer, potentially enabling more facile production and fabrication of fiber‐reinfo...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2005-09, Vol.26 (17), p.1377-1382
Main Authors: Ben-Haida, Abderrazak, Colquhoun, Howard M., Hodge, Philip, Stanford, John L.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
high performance polymers
macrocycles
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
reactive processing
ring-opening polymerization
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Summary:Blends of the poly(ether sulfone) derived from 4,4′‐biphenol and 4,4′‐dichlorodiphenylsulfone (Radel‐R™) with its homologous macrocyclic oligomers show greatly lowered melt viscosities relative to that of the parent polymer, potentially enabling more facile production and fabrication of fiber‐reinforced composite materials. The macrocycles can then undergo entropically driven ring‐opening polymerization in situ. The required blends can be obtained easily in one step, by carrying out polycondensations at concentrations lower than those usually used for polymer synthesis. Percentage of MCOs 5 in the product as a function of total monomer concentration.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200500364