One‐Component Intrinsic Self‐Healing Coatings Based on Reversible Crosslinking by Diels–Alder Cycloadditions. Issue 14 (3rd July 2013)

• Record Type: Journal Article
• Authors: Kötteritzsch, Julia; Stumpf, Steffi; Hoeppener, Stephanie; Vitz, Juergen; Hager, Martin D.; Schubert, Ulrich S.
• Is Part Of: Macromolecular chemistry and physics. Volume 214:Issue 14(2013:Jul.)
• Page Start: 1636
• Page End: 1649
• Publication Date: 2013-07-03
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201200712
• Languages: English
• ISSNs: 1022-1352

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Terpolymers containing functional moieties for reversible crosslinking by DA reaction are synthesized for application as self‐healing coatings. The polymers are based on a methacrylate backbone containing furan as well as maleimide units in the side chains. No additional crosslinker is required to obtain a self‐healing polymeric material. After damage, the material can be heated to a temperature at which the retro‐DA reaction takes place. Subsequent cooling to room temperature leads to a healing of the scratch due to the coupling of the two reactive functional groups. This healing process can be repeated multiple times. The polymers are characterized by means of ¹H NMR spectroscopy, size‐exclusion chromatography, matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry, thermogravimentric analysis, and differential scanning calorimetry. The self‐healing properties are studied using atomic force microscopy, scanning electron microscopy, and nanoindentation.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg271jt1sq" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>