Huang, Jiarong published the artcileA stretchable elastomer with recyclability and shape memory assisted self-healing capabilities based on dynamic disulfide bonds, Name: 2,2′-Dithiodibenzoic acid, the publication is Polymer (2022), 124569, database is CAplus.
Shape memory assisted self-healing (SMASH) material is a kind of smart materials that can automatically close local microscopic cracks and heal those cracks by bonding the damaged surfaces. Here, the authors designed a SMASH elastomer via introducing polylactide (PLA) and disulfide bonds into the epoxidized natural rubber (ENR). PLA chains were interspersed in ENR network as control switch to fix or release the temporary shape, providing ENR with enhanced mech. strength and shape memory properties. After achieving the phys. contact of crack surfaces by intrinsic shape memory, the exchange reaction of disulfide bonds healed the damaged area at elevated temperature Meanwhile, the dynamic feature of disulfide bonds endowed ENR with recyclability, which could be further promoted by the thermoplasticity of PLA phase. Addnl., the authors also verified the feasibility of this strategy in designing PLA/ENR thermoplastic vulcanizate with SMASH behavior via dynamic vulcanization, expanding the research scope of self-healing elastomers and dynamic vulcanization.
Polymer published new progress about 119-80-2. 119-80-2 belongs to catalysis-chemistry, auxiliary class sulfides,Carboxylic acid,Benzene, name is 2,2′-Dithiodibenzoic acid, and the molecular formula is C14H10O4S2, Name: 2,2′-Dithiodibenzoic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia