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Title: Simultaneous covalent and noncovalent hybrid polymerizations

Abstract

Covalent and supramolecular polymers are two distinct forms of soft matter, composed of long chains of covalently and noncovalently linked structural units, respectively. We report a hybrid system formed by simultaneous covalent and supramolecular polymerizations of monomers. The process yields cylindrical fibers of uniform diameter that contain covalent and supramolecular compartments, a morphology not observed when the two polymers are formed independently. The covalent polymer has a rigid aromatic imine backbone with helicoidal conformation, and its alkylated peptide side chains are structurally identical to the monomer molecules of supramolecular polymers. In the hybrid system, covalent chains grow to higher average molar mass relative to chains formed via the same polymerization in the absence of a supramolecular compartment. The supramolecular compartments can be reversibly removed and re-formed to reconstitute the hybrid structure, suggesting soft materials with novel delivery or repair functions.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1346247
Resource Type:
Journal Article
Resource Relation:
Journal Name: Science; Journal Volume: 351; Journal Issue: 6272
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE

Citation Formats

Yu, Z., Tantakitti, F., Yu, T., Palmer, L. C., Schatz, G. C., and Stupp, S. I. Simultaneous covalent and noncovalent hybrid polymerizations. United States: N. p., 2016. Web. doi:10.1126/science.aad4091.
Yu, Z., Tantakitti, F., Yu, T., Palmer, L. C., Schatz, G. C., & Stupp, S. I. Simultaneous covalent and noncovalent hybrid polymerizations. United States. doi:10.1126/science.aad4091.
Yu, Z., Tantakitti, F., Yu, T., Palmer, L. C., Schatz, G. C., and Stupp, S. I. 2016. "Simultaneous covalent and noncovalent hybrid polymerizations". United States. doi:10.1126/science.aad4091.
@article{osti_1346247,
title = {Simultaneous covalent and noncovalent hybrid polymerizations},
author = {Yu, Z. and Tantakitti, F. and Yu, T. and Palmer, L. C. and Schatz, G. C. and Stupp, S. I.},
abstractNote = {Covalent and supramolecular polymers are two distinct forms of soft matter, composed of long chains of covalently and noncovalently linked structural units, respectively. We report a hybrid system formed by simultaneous covalent and supramolecular polymerizations of monomers. The process yields cylindrical fibers of uniform diameter that contain covalent and supramolecular compartments, a morphology not observed when the two polymers are formed independently. The covalent polymer has a rigid aromatic imine backbone with helicoidal conformation, and its alkylated peptide side chains are structurally identical to the monomer molecules of supramolecular polymers. In the hybrid system, covalent chains grow to higher average molar mass relative to chains formed via the same polymerization in the absence of a supramolecular compartment. The supramolecular compartments can be reversibly removed and re-formed to reconstitute the hybrid structure, suggesting soft materials with novel delivery or repair functions.},
doi = {10.1126/science.aad4091},
journal = {Science},
number = 6272,
volume = 351,
place = {United States},
year = 2016,
month = 1
}
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