Synthesis and analysis of thermally degradable polybutadiene containing Diels–Alder adduct

Abstract

The thermoreversible Diels-Alder reaction, a type of stimuli-responsive reversible organic reaction, is attractive because its direction can be easily controlled. In this study, the cross-linked Diels-Alder adduct-containing polybutadiene (DAPBD) was synthesized by the S N 2 reaction of bromine-terminated polybutadiene with a furan-bismaleimide Diels-Alder adduct, and their thermodegradable behavior was analyzed by thermogravimetric analysis. DAPBD was dissociated by the retro-Diels-Alder reaction and dissolved in chlorobenzene at 132 C to generate furan-terminated polybutadiene (FTPB) and bismaleimide that were identified by 1 H NMR spectroscopy. This synthetic method using premade Diels-Alder adducts is expected to enhance the thermoreversibility of the materials by significantly increasing the concentration of the Diels-Alder adduct moieties in the final DAPBD. The polymerization performed at 35 C will help widen the scope of the use of such materials.

Facile Synthesis of Hafnium Oxide Nanoparticle Decorated on Graphene Nanosheet and Its Photocatalytic Degradation of Organic Pollutants under UV-Light Irradiation

“…A prominent POP in this group is tetracycline, which is used extensively as an antibiotic in veterinary medicine and aquaculture [3,4]. Therefore, it is essential to find practical solutions to remove such POPs from the environmental [5,6]. Photocatalysis has gained recognition as an environmentally friendly technology at ambient temperature for efficiently mineralizing POPs [7][8][9].…”