A study of molecular weight of polycaproamide obtained by anionic polymerization of caprolactam in solvent

✍ Scribed by P. Biernacki; M. Wlodarczyk

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 239 KB
• Volume: 11
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(75)90183-4

✦ Synopsis

A~tntct--Molecular weight of polycaproamide obtained by anionic polymerization of caprolactam in solution in the presence of sodium caprolactam and carbon dioxide has been investigated by absolute methods. Number average molecular weights were determined by osmometry. Weight average molecular weights were found by light scattering. Schulz's number of heterogeneity of unfractionated polycaproamide was 0-83. Polycaproamide obtained by anionic polymerization in solution is more homogeneous than products of hydrolytic or anionic polymerization of caprolactam in the bulk. This result corroborated our previous report based on fractionation data.