𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Chemical modification of polysulfones by bisphenolic copper chelates

✍ Scribed by A. Airinei; Elena Butuc; V. Cozan; R. Ardeleanu


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
93 KB
Volume
12
Category
Article
ISSN
0268-2605

No coin nor oath required. For personal study only.

✦ Synopsis


Chloro-terminated polysulfones with various molecular weights were chemically modified with bis(2,4-dihydroxybenzaldehyde)copper(II). The properties of modified polysulfones are compared with the unmodified ones, and an increase in glass transition temperatures, softening points and reduced viscosities of the former materials was observed. In addition, the chelate-modified polymers exhibited excellent thermal stability properties and semicrystalline patterns. Also, they provided transparent and flexible films.


πŸ“œ SIMILAR VOLUMES


Modification of polysulfone gas separati
✍ F. A. Ruiz-TreviΓ±o; D. R. Paul πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 323 KB πŸ‘ 1 views

The incorporation of additives into polymers like bisphenol A polysulfone (PSF) can provide an attractive alternative for modifying their permselective properties for gas separation, provided the additive is appropriately selected. In this work, three series of additives based on naphthalene, bisphe

Chemical Modification of Terephthalate P
✍ Corrado Berti; Martino Colonna; Maurizio Fiorini; Cesare Lorenzetti; Paola March πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 122 KB

## Abstract **Summary:** Copolyesters of terephthalic acid with bis(hydroxyethyl ether) of bisphenol A (BHEEB) in different molar ratios have been synthesized by reactive blending from terephthalate polyesters and by melt polycondensation from the monomers. By this way, bisphenol A groups were inse

Surface modification of polyimide and po
✍ Jongok Won; Myung Ho Kim; Yong Soo Kang; Hyun Chae Park; Un Young Kim; Sung Chan πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 136 KB πŸ‘ 1 views

The surface carbonization of polyimide (PI) and polysulfone (PSf) by ion beam has been performed to adapt the carbon molecular sieve properties on the skin of the polymeric membranes without the deformation of the membrane structure. In order to control the structure of membrane skin and to improve