Simultaneous covalent and noncovalent hybrid polymerizations

Zhilin Yu, Faifan Tantakitti, Tao Yu, Liam C. Palmer, George C Schatz, Samuel I Stupp

Research output: Contribution to journalArticle

87 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)497-502
Number of pages6
JournalScience
Volume351
Issue number6272
DOIs
Publication statusPublished - Jan 29 2016

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