Small spherical particles of styrene-divinylbenzene copolymers have been synthesized by modified suspension polymerization. The effects of divinylbenzene ( DVB) contents, dilution degree of the monomers and diluent composition on the porous structure and swelling properties of the copolymers were in
Porous structure formation and swelling properties of styrene-divinylbenzene copolymers
✍ Scribed by D. Rabelo; F.M.B. Coutinho
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 588 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The swelling capacity of porous styrene-divinylbenzene (DVB) copolymers in water was studied by displacing methanol from the swollen polymer. The copolymers with different amounts of DVB were prepared in the presence of solvents with different solvating powers as inert diluents. Using a solvating so
Structures of copolymers of styrene and divinylbenzene (50% crosslinking degree) prepared in suspension polymerization in the presence of mixtures of nonsol (heptane or decane) and sol (toluene or tetralin) diluents were investigated. The studies showed that the diluents enriched with nonsol solvent
A series of porous ethylvinylbenzene-divinylbenzene (EVB-DVB) copolymers with DVB contents ranging from 22.0 to 98.4% were prepared using various amounts of toluene as the inert diluent, and studies were made on the copolymers as to their swelling properties, the stability of their pore structure, a
## Abstract Copolymers of styrene, divinylbenzene, and acrylic acid that have undergone sulfonation exhibited good water absorbency properties. Removal of the lower molecular weight fraction in the surface region of the copolymer particles by toluene extraction before sulfonation has further increa