Communications

Measurement of chain transfer to monomer constants in ketene acetal homo- and copolymerization

M. Yu. Zaremski, E. E. Aliev, E. V. Pukhanova, N. S. Goulioukina

Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation

Аннотация: The chain transfer to monomer constants (C_M) in homopolymerization of 2-methylene-1,3-dioxepane and its copolymerization with styrene are determined under different conditions using the chain length distribution analytical method. The obtained chain transfer constant value C_M = (1.2–1.6) × 10⁻² is 2–3 orders of magnitude higher than that for polymerization of vinyl monomers such as styrene, MMA and others. Therefore, the chain transfer to monomer is the main chain-growth termination reaction in radical ring-opening polymerization of ketene acetals.

Ключевые слова: chain transfer to monomer, ketene acetals, ring-opening, radical polymerization, chain length distribution.

Поступила в редакцию: 08.11.2024
Принята в печать: 19.12.2024

Язык публикации: английский

DOI: 10.71267/mencom.7678

Реферативные базы данных:

• 
•