Li, Yan Mei published the artcileTailored modular assembly derived self-healing polythioureas with largely tunable properties covering plastics, elastomers and fibers, Formula: C13H26N2, the publication is Nature Communications (2022), 13(1), 2633, database is CAplus and MEDLINE.
To impart self-healing polymers largely adjustable dynamicity and mech. performance, here we develop libraries of catalyst-free reversible polythioureas directly from commodity 1,4-phenylene diisothiocyanate and amines via facile click chem. based modular assembly. By using the amine modules with various steric hindrances and flexibilities, the reversible thiourea units acquire triggering temperatures from room temperature to 120 °C. Accordingly, the derived self-healable, recyclable and controlled degradable dynamically crosslinked polythioureas can take effect within wide temperature range. Moreover, mech. properties of the materials can be tuned covering plastics, elastomers and fibers using (i) different assemble modules or (ii) solid-state stretching. Particularly, unidirectional stretching leads to the record-high tensile strength of 266 MPa, while bidirectional stretching provides the materials with biaxial strengths up to over 120 MPa. The mol. mechanism and technol. innovations discussed in this work may benefit promotion and application of self-healing polymers towards greatly diverse demands and scenarios.
Nature Communications published new progress about 1761-71-3. 1761-71-3 belongs to quinuclidine, auxiliary class Ploymers, name is 4,4-Diaminodicyclohexyl methane, and the molecular formula is C13H26N2, Formula: C13H26N2.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider