ABSTRACT

Thermoreversible cross-linking represents one of the most promising and studied ˜elds in polymer chemistry, as testi˜ed by the progressively increasing number of publications submitted in the last 20 years. The reasons for such interest can be properly testi˜ed by the advantages that a selective bond cleavage (i.e., of the crosslinking points vs. the one along the polymeric backbone) brings in applications such

9.1 Introduction .................................................................................................. 199 9.2 Chemical Interactions ................................................................................... 201

9.2.1 Diels-Alder Reaction ........................................................................ 201 9.2.1.1 Furan-Maleimide ..............................................................202 9.2.1.2 Anthracene-Maleimide ..................................................... 211 9.2.1.3 Cyclopentadiene ................................................................. 213 9.2.1.4 Fulvene-Fulvene ................................................................ 216 9.2.1.5 Fullerene-Diene ................................................................. 217 9.2.1.6 Cyclopentadiene-Dithioester ............................................. 218 9.2.1.7 Discussion .......................................................................... 219

9.2.2 Other Chemical Systems .................................................................. 222 9.2.2.1 Ionene ................................................................................. 222 9.2.2.2 Ester-Amide Bond Rupture ............................................... 223 9.2.2.3 Radical Coupling ...............................................................225