Jiang, Xiaolin published the artcilePreparation and molecular dynamics study of polyurethane damping elastomer containing dynamic disulfide bond and multiple hydrogen bond, SDS of cas: 119-80-2, the publication is European Polymer Journal (2022), 110893, database is CAplus.
Using damping materials is an effective measure to control vibration and noise, which is widely used. However, it is relatively difficult for polymer damping materials to find a balance between damping and mech. properties. Herein, a polyurethane is designed containing dynamic disulfide bonds and hydrogen bonds of different strength to address the dilemma. The polyurethane is endowed with good damping and mech. properties (effective damping temperature range of 117¡ãC and a tensile strength of 14.98 ¡À 0.50 MPa). The mol. dynamics were studied by combining dynamic mech. anal. (DMA) and broadband dielec. relaxation spectroscopy (BDRS). The microphase separation morphol. and degrees of separation were used to help explain mol. dynamics. The segmental motion of soft phase becomes difficult in the glass-transition temperature (Tg) and faster in a high temperature with increasing 2,2′-dithiodibenzoic acid (DTSA) contents. These results explain the mechanism improving damping performance and provide some references for designing damping materials in the future.
European Polymer Journal 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, SDS of cas: 119-80-2.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia