Counting loops in sidechain-crosslinked polymers from elastic solids to single-chain nanoparticles
Name
c9sc01297d.pdf
Description
Published version
Size
869.53 KB
Format
Adobe PDF
Checksum (MD5)
377c09abd7922c8f7b8305a9cc8b0cf7
Author(s)
Wang, Junpeng
Wang, Rui
Gu, Yuwei
Sourakov, Alexandra
Olsen, Bradley D
Johnson, Jeremiah A
Date Issued
2019
Journal
Chemical Science
Publisher
Royal Society of Chemistry (RSC)
Version
Final published version
Abstract
© 2019 The Royal Society of Chemistry. The vast differences in material properties accessible via crosslinking of sidechain-functionalized polymers are driven by topology. For example, vulcanized rubbery networks feature intermolecular connections and loop topologies of various orders while single-chain nanoparticles (SCNPs) are comprised, in principle, entirely of primary loops. Despite this fact, precise quantification of loops in sidechain crosslinked polymers has not been accomplished. Here, it is demonstrated that by introducing cleavable linkers and mass labels onto the pendant functional groups of reactive polymers, the number of primary loops in sidechain crosslinked materials ranging from rubbery networks (gels) to soluble SCNPs can be precisely quantified. This study sheds new light on the topology of sidechain-crosslinked networks, providing design principles for augmenting the properties of this industrially and academically important class of materials through topological control.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution 3.0 unported license
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DOI of Published Version
https://doi.org/10.1039/c9sc01297d
