Synthetic Route of C3H7BrOIn 2019 ,《Synthesis of mechanically strong waterborne poly(urethane-urea)s capable of self-healing at elevated temperatures》 appeared in European Polymer Journal. The author of the article were Nevejans, Sil; Ballard, Nicholas; Rivilla, Ivan; Fernandez, Mercedes; Santamaria, Antxon; Reck, Bernd; Asua, Jose M.. The article conveys some information:
Although various chemistries were introduced into polyurethanes to obtain self-healing abilities, implementing these materials in applications requiring high strength is challenging as strong materials imply a limited mol. motion, but without movement of polymer chains self-healing is not possible. Here, waterborne poly(urethane-urea)s (PU(U)s) based on aromatic disulfide compounds are developed which balance these contradictory requirements by presenting good mech. properties at room temperature, while showing the mobility necessary for healing when moderately heated. The influence of hard monomers on the stability and mobility of the materials is studied by scratch closure, cut healing and rheol. measurements, so that the limits of the readily available aromatic disulfide compounds, bis(4-aminophenyl)- and bis(4-hydroxyphenyl)disulfide, can be determined Subsequently, a modified aromatic disulfide compound, bis[4-(3′-hydroxypropoxy)phenyl]disulfide, with increased reactivity, solubility and flexibility is synthesized and incorporated into the PU backbone, so that materials with more attractive mech. properties, reaching ultimate tensile strengths up to 23 MPa, and self-healing abilities at elevated temperatures could be obtained. The results came from multiple reactions, including the reaction of 3-Bromopropan-1-ol(cas: 627-18-9Synthetic Route of C3H7BrO)
3-Bromopropan-1-ol(cas: 627-18-9) is used in the synthesis of fluorescent halide-sensitive quinolinium dyes, chiral, quaternary prolines through cyclization of quaternary amino acids and molten salt-polymers. It is utilized for the study of micellar media and in microemulsions based on cationic or a nonionic surfactant by reacting with phenols.Synthetic Route of C3H7BrO
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