Mikhail Yu. Zaremski, Elvin E. Aliev, Elena V. Pukhanova, Nataliya S. Goulioukina
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引用次数: 0
Abstract
Using the example of polymerization of 2-methylene-1,3-dioxepane and copolymerization with styrene, it was shown that the main chain-growth termination reaction in radical ring-opening polymerization of ketene acetals is the chain transfer to monomer. This feature determines not only the formation of polymers with low molecular weight, but also the weak dependence of molecular weight on polymerization conditions (temperature, initiator concentration). The value of the chain transfer to monomer constant CM = (1.2–1.6) × 10–2, determined by the method of linearizing chain length distribution, is 2–3 orders of magnitude higher than that for polymerization of vinyl monomers (styrene, MMA, etc.). The degree of polymerization (Pn) corresponds to the equation Pn = 1/CM.
期刊介绍：
Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology.
As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including:
polymer synthesis;
polymer reactions;
polymerization kinetics;
polymer physics;
morphology;
structure-property relationships;
polymer analysis and characterization;
physical and mechanical properties;
electrical and optical properties;
polymer processing and rheology;
application of polymers;
supramolecular science of polymers;
polymer composites.
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