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Copolyesteramides—I. Anionic copolymers of ω-laurolactam with ϵ-caprolactone

✍ Scribed by I. Goodman; A. Valavanidis

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
582 KB
Volume
20
Category
Article
ISSN
0014-3057

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Copolyesteramides—IV. Anionic copolymers
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The N-sodiocaprolactam-catalysed anionic polymerisation of e-caprolactam is activated by e-caprolactone which itself acts as a comonomer, yielding copolyesteramides. At lower temperatures and lower catalyst concentrations, copolymerisation of the lactone is favoured over that of lactam; higher tempe

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Copolyamides ofhigh mol.wt were obtained by the anionic copolymerisation of E-caprohtctam with ,)-laurolactam at 180 C. using a sodium caprolactamate-N-phenylcarbamoylcaprolactam initiator activator system. The proportions of co-units in the copol',mers were close to those in the comonomer feeds. Th

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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