A thermodynamic polymer cross-linking system based on radically exchangeable covalent bonds

Yuji Higaki, Hideyuki Otsuka, Atsushi Takahara

Research output: Contribution to journalArticlepeer-review

136 Citations (Scopus)

Abstract

A thermodynamic covalent cross-linking system utilizing alkoxyamine units as thermally reversible covalent bonds was demonstrated. By heating the poly(methacrylic ester)s containing alkoxyamine units on the side chain, the cross-linking reaction was achieved as a result of a radical exchange reaction of alkoxyamine moieties. Kinetic studies have revealed that the cross-linking behavior depends remarkably on concentration and reaches equilibrium at a given reaction time, and characteristic reaction behaviors for thermodynamic reactions have been observed. The de-cross-linking reaction was carried out by heating the cross-linked polymer in the presence of an excess amount of alkoxyamine. It was found that the cross-linked points thermally dissociate and that the reaction system is reversible under stoichiometric control.

Original languageEnglish
Pages (from-to)2121-2125
Number of pages5
JournalMacromolecules
Volume39
Issue number6
DOIs
Publication statusPublished - Mar 21 2006

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'A thermodynamic polymer cross-linking system based on radically exchangeable covalent bonds'. Together they form a unique fingerprint.

Cite this