Solution properties and chain flexibility of poly(thiocarbonate) from 1,1-bis(4-hydroxyphenyl)phenyl ethane
✍ Scribed by L. Gargallo; E. Soto; L.H. Tagle; D. Radić
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 262 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0014-3057
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The dilute solution properties of poly[2,2-propane-bis (4-phenylthiocarbonate)] (PPhTC) in various solvents have been studied by viscosity, osmotic pressure and gel permeation chromatography measurements. The unperturbed dimensions were determined, and the viscometric relationships were established.
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New aromatic polyetherimides containing the l,l'-bis[4-(3,4-dicarboxyphenoxy)phenyl] -1phenyl-2,2,2-trifluoroethane dianhydride unit were prepared by a conventional two-step method from l,l'-bis[4-(3,4-dicarboxyphenoxy)phenyl]-l-phenyl-2,2,2-trifluoroethane dianhydride and several diamines. This pro
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