This is not the latest version of this item. The latest version can be found here.
Continuous dimethyldioxirane generation for polymer epoxidation
Name
d0py01676d.pdf
Description
Published version
Size
767.8 KB
Format
Adobe PDF
Checksum (MD5)
e6c525f7b66ed5a2e0f1e92899b99df4
Author(s)
Ahlqvist, Grace P
Burke, Eileen G
Johnson, Jeremiah A
Jamison, Timothy F
Date Issued
2021
Journal
Polymer Chemistry
Publisher
Royal Society of Chemistry (RSC)
Version
Final published version
Abstract
© The Royal Society of Chemistry 2021. Post-polymerization modification of commodity polymers yields new applications for materials already produced industrially. Incorporation of small amounts of epoxides into unsaturated polymers such as polybutadiene expands their use for grafting and compatibilization applications, but controlled epoxidation of these polymers in a safe, scalable manner presents a challenge. Herein we describe the development of a reactor for the continuous flow generation and use of dimethyldioxirane (DMDO) and its application to the low-level epoxidation of unsaturated polymers. A continuous stirred tank reactor (CSTR) prevents reactor clogging by allowing solid precipitates to settle, enabling the pumping of a homogeneous solution of oxidant. Modification of relative concentrations, flow rates, and temperatures achieves variable epoxidation levels. This method has been demonstrated on gram scale.
Terms of Use
Creative Commons Attribution Noncommercial 3.0 unported license
Persistent DSpace Link
DOI of Published Version
10.1039/d0py01676d
