Yang, Zhijun published the artcileBio-inspired self-healing polyurethanes with multiple stimulus responsiveness, Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one, the publication is Polymer Chemistry (2019), 10(24), 3362-3370, database is CAplus.
High-performance stimuli-responsive polymers that exhibit spontaneous, sophisticated and reversible responses to a wide range of external stimuli are highly desirable for applications in diverse fields and have attracted dramatic attention in recent decades. However, it still remains a great challenge to precisely design mol. architectures which can integrate multi-stimuli responsive functions into one structure in polymeric materials. In this study, we reported the synthesis and preparation of a novel multi-responsive self-healing polyurethane with superior mech. properties by adapting a stimuli-responsive dynamic covalent chem. crosslinker and a biomimetic modular polymer design. This unique crosslinker was synthesized through the Michael addition reaction between thiols and bismaleimides, making the chem. crosslinked polyurethanes healable and recyclable at an elevated temperature as well as stimuli-responsive to heat, pH and ammonia gas. A visible color change can be clearly observed when the polymer is in the base or ammonia gas environment, giving the sample great potential for being a gas or pH sensor. Furthermore, the incorporation of self-complementary quadruple hydrogen bonding interactions between 2-ureido-4-[1H]-pyrimidione (UPy) motifs in the polyurethane backbone chains enables the formation of modular hydrogen bonding domains, endowing the material with enhanced mech. properties.
Polymer Chemistry published new progress about 517-23-7. 517-23-7 belongs to esters-buliding-blocks, auxiliary class Tetrahydrofuran,Ketone,Ester, name is 3-Acetyldihydrofuran-2(3H)-one, and the molecular formula is C6H13I, Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics