Chen, M. K.; Zhang, R.; Tang, M. Z.; Huang, G. S.; Xu, Y. X. The effect of branching structure on the properties of entangled or non-covalently crosslinked polyisoprene. Chinese J. Polym. Sci. 2021, 39, 113–121
Mo-Kun Chen, Rong Zhang, Mao-Zhu Tang, et al. The Effect of Branching Structure on the Properties of Entangled or Non-covalently Crosslinked Polyisoprene[J]. Chinese Journal of Polymer Science, 2021, 39(1): 113-121.
Chen, M. K.; Zhang, R.; Tang, M. Z.; Huang, G. S.; Xu, Y. X. The effect of branching structure on the properties of entangled or non-covalently crosslinked polyisoprene. Chinese J. Polym. Sci. 2021, 39, 113–121DOI: 10.1007/s10118-020-2480-0.
Mo-Kun Chen, Rong Zhang, Mao-Zhu Tang, et al. The Effect of Branching Structure on the Properties of Entangled or Non-covalently Crosslinked Polyisoprene[J]. Chinese Journal of Polymer Science, 2021, 39(1): 113-121.DOI: 10.1007/s10118-020-2480-0.
The Effect of Branching Structure on the Properties of Entangled or Non-covalently Crosslinked Polyisoprene
The branching structures in natural rubber (NR) were believed to be critical for its superior mechanical properties. However
it is challenging to unravel the branching structure-function relationship of NR due to the complexity of the system. Herein
polyisoprene-(polyisoprene-
g
-polylactide) (PI-PLA) as model compound containing branching structure was designed and synthesized
which can improve the modulus
strength and viscoelasticity activation energy compared to those of the pristine polyisoprene (PI). The reason is that the branching structure contributes to the entanglement between polyisoprene chains. In order to probe the effect of branching structure on noncovalently crosslinked system
the polyisoprene block of PI-PLA was epoxidized and mixed with Fe
3+
ions to introduce coordination bonds. Compared with the linear counterpart
the branching structure obviously enhanced activation energy of coordinated polyisoprenes
remarkably improving the mechanical properies of elastomer.
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references
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