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Traditional polyamide elastomer synthesis via polycondensation of diamines and dicarboxylic acids involves high energy use and by‐product mass loss. Here, we present a novel method using thiol‐Michael addition click chemistry to produce these elastomers under mild conditions, marking the first use of this strategy. The polymerization involves coupling bis‐acrylamide (BAA) with 3,6‐dioxa‐1,8‐octanedithiol (DODT), catalyzed by 1,5‐diazabicyclo[4.3.0]non‐5‐ene (DBN). BAA is synthesized from polyetheramine and acryloyl chloride, creating a compound with amide groups and carbon double bonds at chain ends. These double bonds' electron‐withdrawing effect facilitates the click reaction efficiently, avoiding high energy and mass loss. The resulting polymers have a molecular weight of approximately 10,000 g/mol, verified by 1H NMR and FTIR spectroscopy, which show amide group presence. SAXS and AFM confirm nanophase separation of these groups. Tensile strength ranges from 0.235 to 0.542 MPa, decreasing with lower polyetheramine content but still showing notable elasticity. This method's low energy use, no mass loss, and good mechanical properties make it promising for developing high‐performance polyamide plastics and elastomers, appealing to researchers in both academia and industry. Highlights: High elasticity, softness, and high tensile polyamide elastomer.Thiol‐Michael addition click reaction conforms to atomic economy.Long molecular chain contains extraordinary evolution of hydrogen bonding. [ABSTRACT FROM AUTHOR]

We investigate how blockchain technology influences optimal pricing and quality decisions under two different supply chain structures. In both cases, the supplier is the leader and plays a Stackelberg game with downstream platform(s). Specifically, the supplier determines the wholesale prices and quality levels of the products, and the platform(s) decides the selling prices. Based on our analysis, we find that when consumer acceptance of blockchain is low, among the two products in the single platform, the products with blockchain technology have not only a high quality but also a low price. However, in the case of the two competitive platforms, although blockchain will also enable the platform that uses this technology to provide products with a high quality and low price, its advantages are not obvious. Nevertheless, in comparing the two cases, when consumer acceptance is high, the two competing platforms tend to provide products with a high quality and low price, regardless of whether or not the products use blockchain technology. Our conclusions reveal that although blockchain will benefit a supplier and consumers, in some cases, the supplier will have an incentive to decrease the quality level of the products with blockchain technology, which will eventually negatively affect consumers. [ABSTRACT FROM AUTHOR]