Zhou, Jiahui published the artcileRobust Poly(urethane-amide) Protective Film with Fast Self-Healing at Room Temperature, Name: 2,2′-Dithiodibenzoic acid, the publication is ACS Applied Polymer Materials (2020), 2(2), 285-294, database is CAplus.
Simultaneous optimization of the mech. strength and self-healing cycles of polymers at ambient temperature has long been considered a great challenge because it is difficult to strike a balance between intermol. interactions and segment/chain mobility. Here, we synthesized a unique class of amide-based polyurethanes incorporated with an unreported low-cost carboxylic-acid-type aromatic disulfide, which exhibits an amazing integration of mech. robustness and fast self-healing ability, and a ready healing efficiency of 98% can be achieved when healed for only 30 s at ambient temperature, as calculated using Young’s modulus (pristine: 59.4 MPa). As a result of hierarchical structure tuning, the target poly(urethane-amide) exhibits relatively fast segment movements but slow chain diffusion dynamics, thus facilitating rapid recombination of H-bonding as well as disulfide metathesis between fractured surfaces with a small degree of both microphase separation and crystallization This easily processable poly(urethane-amide) has the potential to be widely used in various industries as a high value-added film.
ACS Applied Polymer Materials 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 C44H28ClFeN4, Name: 2,2′-Dithiodibenzoic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia