𝔖 Bobbio Scriptorium
✦   LIBER   ✦

High conversion copolymerization of styrene with methylmethacrylate

✍ Scribed by M. Johnson; T.S. Karmo; R.R. Smith

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
408 KB
Volume
14
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

A study of the free radical copolymerization of styrene-methylmethacrylate at high conversion is reported. Differences are observed between the experimentally measured compositions and those calculated according to the integrated form of the copolymer composition equation, using published reactivity ratios. Significant differences occur only in situations exhibiting a gel effect, e.g. during bulk copolymerization or with a precipitant like butyl stearate present. Negligible differences are exhibited when a solvent such as benzene is present. Differences have been expressed as changes in copolymer reactivity ratios with conversion; the start of any changes in reactivity ratios is closely related to the onset of gel effects.

πŸ“œ SIMILAR VOLUMES

Graft copolymerization of methylmethacry
Graft copolymerization of methylmethacrylate with N-substituted maleimide-styrene copolymer by ATRP
✍ T. Γ‡akir; I. E. Serhatli; A. Γ–nen πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 156 KB πŸ‘ 1 views

## Abstract Atom transfer radical polymerization (ATRP) was employed to prepare graft copolymers having poly(MBr)‐__alt__‐poly(St) copolymer as backbone and poly(methyl methacrylate) (PMMA) as branches to obtain heat resistant graft copolymers. The macroinitiator was prepared by copolymerization of

Copolymerization of styrene, maleic anhy
Copolymerization of styrene, maleic anhydride and acrylonitrile up to high conversion
✍ Regina De J. Santos; Bluma G. Soares; Ailton S. Gomes πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 214 KB

## Abstract Terpolymers of styrene, maleic anhydride and acrylonitrile were synthesized by variation of the molar ratios of the three monomers at total monomer conversion up to 90 mol‐%. Polymerizations were performed with total initial monomer concentrations of 0,25 g/mL in benzene at 60Β°C with AI

The study of the copolymerization of sty
The study of the copolymerization of styrene and acrylonitrile to high conversion. application of low conversion reactivity ratios
✍ D.J.T. Hill; A.P. Lang; J.H. O'Donnell πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 594 KB

A~traet--The copolymerization of styrene and acrylonitrile has been investigated with the purpose of predicting the changes in copolymer composition and comonomer sequence distribution with increasing conversion. Toluene was used as the solvent and the copolymerization was examined initially under l