In:
Angewandte Chemie, Wiley, Vol. 132, No. 23 ( 2020-06-02), p. 9159-9164
Abstract:
Photo‐redox mediated ring‐opening metathesis polymerization (photo‐ROMP) is an emerging ROMP technique that uses an organic redox mediator and a vinyl ether initiator, in contrast to metal‐based initiators traditionally used in ROMP. The reversibility of the redox‐mediated initiation and propagation steps enable spatiotemporal control over the polymerization. Herein, we explore a simple, inexpensive means of controlling molecular weight, using alpha olefins as chain transfer agents. This method enables access to low molecular weight oligomers, and molecular weights between 1 and 30 kDa can be targeted simply by altering the stoichiometry of the reaction. This method of molecular weight control was then used to synthesize a functionalized norbornene copolymer in a range of molecular weights for specific materials applications.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v132.23
DOI:
10.1002/ange.202000434
Language:
English
Publisher:
Wiley
Publication Date:
2020
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505868-5
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514305-6
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505872-7
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1479266-7
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506259-7
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