Hu, Yaofang; Tang, Gang; Luo, Yunjun; Chi, Shumeng; Li, Xiaoyu published the artcile< Glycidyl azide polymer-based polyurethane vitrimers with disulfide chain extenders>, Computed Properties of 112-63-0, the main research area is glycidyl azide polyol based polyurethane vitrimer property.
The glycidyl azide polymer (GAP) is an important type of energetic polymer and is considered to be the most promising candidate for polymeric binders for next generation solid propellants. However, the most outstanding obstacle for the wide application of GAP is its low mech. properties, which is usually overcome by incorporating it into polyurethanes (PUs) as a soft segment. Herein, we report the preparation of a series of GAP-based PU vitrimers (GAPUVs), with GAP, 2-hydroxyethyl disulfide (HEDS), and trimethylolpropane (TMP) as the soft segment, chain extender and crosslinker, resp. The crosslinking d. and composition of the resultant thermosetting GAPUVs were optimized to significantly improve the mech. properties, which were clearly superior to their linear counterparts and most examples from the literature. More interestingly, the incorporation of dynamic disulfide bonds in the network not only endowed the GAPUVs with decent mech. properties, but also marked healing ability upon mild heating and thermo-reprocessability. This allowed the fabrication of healable composites from GAPUVs and aluminum powders, with a healing efficiency above 95%. Addnl., the thermo-exchangeable disulfide linkage in the GAPUVs allowed the full recovery of the loaded fillers by simply heating the composite in a solvent.
Polymer Chemistry published new progress about Crosslink density. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics