Glass transition, melting and crystallization of ω-dodecane lactam and ϵ-caprolactam copolymers
✍ Scribed by Yu.K. Godovskii; I.I. Dubovik; S.L. Ivanova; V.V. Kurashev; T. Frunze; G.L. Slonimskii
- Book ID
- 118965450
- Publisher
- Elsevier Science
- Year
- 1977
- Weight
- 546 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0032-3950
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## Abstract Anionic polymerization of ϵ‐caprolactam was initiated with the potassium salt of ϵ‐caprolactam and accelerated with phenyl isocyanate, toluylene diisocyanate, 4,4′‐diphenylmethane diisocyanate, some derivatives of these isocyanates (urethanes, ureas, and allophanates), or combinations o
The crystalline of PCL/PLL random copolymers, prepared by anionic polymerisation in the melt and freed of residual monomer(s), vary with composition and are at a minimum for approx. 65.,"35 mole°,o composition. The Tg's of the copolymers show a minimum with composition; this effect is discussed in r