Laser Single Pulse Initiated RAFT Polymerization for Assessing Chain‐Length Dependent Radical Termination Kinetics | Zendy

Buback Michael | Zendy; Junkers Tanja | Zendy; Vana Philipp | Zendy

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Laser Single Pulse Initiated RAFT Polymerization for Assessing Chain‐Length Dependent Radical Termination Kinetics

Author(s) -

Buback Michael,

Junkers Tanja,

Vana Philipp

Publication year - 2005

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.200500067

Subject(s) - chain transfer , reversible addition−fragmentation chain transfer polymerization , polymerization , raft , radical polymerization , materials science , living free radical polymerization , kinetics , living polymerization , polymer chemistry , laser , acrylate , chain growth polymerization , chemistry , photochemistry , polymer , optics , copolymer , physics , composite material , quantum mechanics

Summary: A novel method combining RAFT polymerization with pulsed‐laser initiation for determining chain‐length dependent termination rate coefficients, k t , is presented. Degenerative chain‐transfer in RAFT enables single‐pulse pulsed‐laser polymerization (SP‐PLP) traces to be measured on systems with a narrow radical distribution that remains essentially unchanged during the experiment. SP‐PLP‐RAFT experiments at different polymerization times allow for determining k t as a function of chain length via classical kinetics assuming chain‐length independent k t .Single‐pulse pulsed‐laser polymerization trace for BMPT‐mediated RAFT polymerization of butyl acrylate.

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