Process for preparing polyarylene sulfides with metal salt of hydroxycarboxylic acid
US5126430A · kind A · utility
24Cited by
9References
5Claims
0Family size
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Key dates
| Filing date | Aug 1, 1989 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Aug 1, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a polyarylene sulfide involves contacting a sulfur source with a metallic salt of an aliphatic .omega.-hydroxycarboxylic acid and a dihalogen aromatic compound in an organic polar solvent, thereby carrying out polycondensation with stability in a polymerization system in which a water content is large. the polyarylene sulfide prepared has a high degree of whiteness and with a sufficiently high molecular weight. The use of the metallic salt of .omega.-hydroxycarboxylic acid in a particular range can provide a novel polyarylene sulfide.
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