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Copolymerization of Vinyl Chloride with Bis(beta-chloroethyl) Vinylphosphonate by R. Gallagher; J. C. H. Hwa is a Materials Science article available to read on EtoBox.
What is Copolymerization of Vinyl Chloride with Bis(beta-chloroethyl) Vinylphosphonate about?
## Abstract Bis(beta‐chloroethyl) vinylphosphonate and vinyl chloride were copolymerized free‐radically in water suspension and in toluene solution at 55°C. From compositional analysis of the low‐conversion copolymers, the reactivity ratios of bis(beta‐chloroethyl) vinylphosphonate (__r__~1~) and vinyl chloride (__r__~2~) were found to be 0.37 ± 0.1 and 0.26 ± 0.05, respectively, indicating that the two monomers have a marked tendency to alternate. From the __Q__ and __e__ values of vinyl chloride, the corresponding __Q.e__ values for the vinylphosphonate are calculated to be 0.23 and 1.73, respectively. Interestingly, the rate of copolymerization is greater than that of homopolymerization, and is also greater when water is present. These copolymerization characteristics are deemed favorable in industrial productions. The copolymers have lower viscosities and glass temperatures than poly (vinyl chloride). From patent literature, the copolymers also show useful flame retardant properties.
Who reads Copolymerization of Vinyl Chloride with Bis(beta-chloroethyl) Vinylphosphonate?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- R. Gallagher; J. C. H. Hwa
- Publisher
- Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0360-8905)
- Published
- 1978
- Language
- EN
- Field
- Materials Science (Physical Sciences)