A Novel Approach to Processing High-Performance Polymers that Exploits Entropically Driven Ring-Opening Polymerization
✍ Scribed by Abderrazak Ben-Haida; Howard M. Colquhoun; Philip Hodge; John L. Stanford
- Book ID
- 102498855
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 153 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
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.
imagePercentage of MCOs 5 in the product as a function of total monomer concentration.