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The authors here demonstrate some significant benefits of using graft polymers with inner molten block and outer glassy block at the graft chains (Graft-Block polymer) for thermoplastic elastomers. The synthesis of the target Graft-Block polymer is made by combining two types of living radical polymerization, reversible addition-fragmentation chain transfer polymerization and atom transfer radical polymerization. Temperature ramp rheology, tensile tests, and load-unload cycle tests indicate that the Graft-Block polymer-based elastomers have significantly improved thermal stability and mechanical properties when compares to the Triblock copolymer-based analog. The enhanced properties are discussed in terms of the effective network strands that connected the different glassy hard domains and the presence of abundant junction points in the molten strand matrix. Overall, this research presents clear experimental evidence of such graft polymers' high potential for application as thermoplastic elastomers.

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KaiA, KaiB, KaiC proteins and ATP produce the temperature-compensated rhythm in the phosphorylation level of KaiC with the period of about 24 hours in vitro. In addition, ATPase activity of KaiC also shows the temperature-compensated circadian rhythm, the period of which is correlated with the phosphorylation level oscillation. Thus we here consider the computational model of a single hexamer of KaiC comprised by monomers, each of which can take two structures and four different states of ligands. We assume that structural changes are at equilibrium in the time scale of the ATPase activity and monitor the stochastic change of bound ligands. By using this model, the mechanism of ATPase activity oscillation and the temperature compensation will be discussed.