𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Diffusion and Reaction Phenomena in Solution-Based Healing of Polymer Coatings Using the Diels–Alder Reaction

✍ Scribed by Purnomo A. Pratama; Amy M. Peterson; Giuseppe R. Palmese

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
918 KB
Volume
213
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The healing of a furan‐functional epoxy coating using bismaleimide (BMI) solutions is demonstrated. Corrosion studies of scratched coated carbon steel show that solution healing of damaged coatings inhibits corrosion. The healing relies on (i) the diffusion of solution components into the polymer, causing the system to swell, thus bringing crack surfaces into contact, and (ii) Diels–Alder adduct formation between furan moieties of the polymer network and the maleimide, resulting in covalent bonding across the crack interface. For the system investigated, crack healing is reaction‐limited for small crack widths. The results provide a guideline for the design and implementation of self‐healing systems based on BMI solution encapsulation.

📜 SIMILAR VOLUMES

Synthesis of polymer-supported chiral N-
Synthesis of polymer-supported chiral N-sulfonylamino acids and their use in asymmetric diels-alder reaction of cyclopentadiene with methacrolein
✍ Koichi Kamahori; Shoichi Tada; Koichi Ito; Shinichi Itsuno 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 501 KB

Crosslinked polymer-supported chiral N-sulfonylamino acids have been synthesized by two methods; namely the chemical modification method and the copolymerization method. In the chemical modification method, the chlorosulfonyl group was introduced into styrenedivinylbenzene copolymers 1 by sulfonatio