Copolymerization of ethylene chlorophosphonite with 2-phenyl-1,3-dioxolane and its flame-retardant effect on polyester fabric
✍ Scribed by Norihiro Inagaki; Kakuji Katsuura
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- English
- Weight
- 384 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Copolymerization of ethylene chlorophosphonite (ECP) with 2‐phenyl‐1,3‐dioxolane (PhD) and the flame‐retardant effect of the copolymer on polyester fabric were investigated. (1) Copolymerization occurred without added catalyzer. The number‐average molecular weight ranged from 600 to 1000. ^1^H‐nmr and ir spectra for the copolymers showed that their structures varied depending on feed composition (ECP/PhD ratio): ECP/PhD less than or equal to 1 yielded an alternating copolymer having the structure
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and at ECP/PhD ratios greater than 1, some insertion reaction of ECP into polymer I occurred. (2) Selectivity of flame retardation could be observed. The copolymer with structure I was an effective flame retardant for polyester fabric but useless for cotton fabric. Its effectiveness in polyester fabric
was superior to that of TBPP.