Category: alcohols-buliding-blocksIn 2021 ,《Main-Side Chain Hydrogen Bonding-Based Self-Healable Polyurethane with Highly Stretchable, Excellent Mechanical Properties for Self-Healing Acid-Base Resistant Coating》 was published in Macromolecular Rapid Communications. The article was written by Xu, Heng; Tu, Jing; Li, Pingyun; Liang, Li; Ji, Jie; Xiang, Guifeng; Li, Haozhe; Zhang, Yang; Guo, Xiaode. The article contains the following contents:
Developing an autonomous self-healing polyurethane (PU) elastomer with excellent mech. properties and high ductility has attracted increasing attention. Nowadays, the synthesis of elastomers with excellent mech. properties and rapid self-healing at room temperature faces a huge challenge. Herein, This work reports a new supramol. PU with excellent mech. properties and rapid self-healing at room temperature through the introduction of T-type chain extender into the supramol. polymer chain. The introduction of T-chain extender can be used to enhance the mech. strength of PU, and the multiple hydrogen bonds on the side-chain provide theor. support for the rapid self-healing ability of PU. Maximum stress of the synthesized PU can reach 3.4 ± 0.15 Mpa, and maximum elongation at break can reach 3200% ± 160%. Due to flexibility and re-constructibility of side-chain hydrogen bonds, PU stress repair efficiency can reach 96.7%, and can be self-healing scratches rapidly and effectively at room temperature The mech. properties and self-healing properties of PU can be adjusted by the content of T-type chain extender. The PU is applied to the metal surface coating, which has excellent acid-base resistance, bond strength up to 2.9 ± 0.1 Mpa, and the ability to eliminate local damage on the coating surface quickly at room temperature In addition to this study using 2-Aminopropane-1,3-diol, there are many other studies that have used 2-Aminopropane-1,3-diol(cas: 534-03-2Category: alcohols-buliding-blocks) was used in this study.
2-Aminopropane-1,3-diol(cas: 534-03-2) belongs to anime.Typically the presence of an amine functional group is deduced by a combination of techniques, including mass spectrometry as well as NMR and IR spectroscopies. 1H NMR signals for amines disappear upon treatment of the sample with D2O. In their infrared spectrum primary amines exhibit two N-H bands, whereas secondary amines exhibit only one.Category: alcohols-buliding-blocks
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts