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This chapter will discuss the self-organization ofUltrahigh molecular weight polyethylene ultrahigh molecular weight polyethylene (UHMWPE) in decline or paraffin as solvent as typical dynamically asymmetric crystallizable solutions under flow. The self-organization of solutions of crystallizable UHMWPE is discovered to be essentially identical to that of dynamically asymmetric noncrystallizable UHMWa-PS solutions under flow as discussed in Chap. 5 , regarding the evolution of the series of the dissipative structures in Regime I–IV via flow-induced liquid–liquid phase transition (L–L) except one important difference regarding presence or absence of the flow-induced liquid–solid phase transition (L–S) (crystallization). The L–S is discovered to interplay with the L–L in the late stage of the self-organization in Regime IV, resulting in the self-organization into shish-kebab crystalline texture (SK) by means of the online shear rheo-optical methodRheo-optical method. The morphological details of the cascade evolution of the series of the dissipative structures are confirmed by means of the observation of the off-line transmission electron microscope images, taken by the special method as described in the text, along the fiber spinningFiber spinning line as a function of the distance along the spinneret. The results disclose the detailed pathway regarding the self-organization of SK through the series of various dissipative structures and general principles of the cascade pattern formationCascade pattern formation in nonequilibrium systems under external flow fields: both shear flow fields for UHMWPE and UHMWa-PS solutions universally evolve the same dissipative structures controlled by the work done and dissipated by the mechanical energy imposed to the systems. This chapter will also discuss the self-organization of extended chain crystal texture through dissipative structures under the hot drawing of the SK textures at temperatures close to but below their melting temperatures where the hot-drawn-induced sliding diffusion of chains occur along the chain axis in the shish and kebab crystals.

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Flow-Induced Ordering of Crystallizable Polymer Solutions into Shish-Kebab and Extended Chain Crystal Texture  through Cascade Evolution of Dissipative Structures

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  • 发表日期：

    2026年

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  • Takeji Hashimoto

摘要

This chapter will discuss the self-organization ofUltrahigh molecular weight polyethylene ultrahigh molecular weight polyethylene (UHMWPE) in decline or paraffin as solvent as typical dynamically asymmetric crystallizable solutions under flow. The self-organization of solutions of crystallizable UHMWPE is discovered to be essentially identical to that of dynamically asymmetric noncrystallizable UHMWa-PS solutions under flow as discussed in Chap. 5 , regarding the evolution of the series of the dissipative structures in Regime I–IV via flow-induced liquid–liquid phase transition (L–L) except one important difference regarding presence or absence of the flow-induced liquid–solid phase transition (L–S) (crystallization). The L–S is discovered to interplay with the L–L in the late stage of the self-organization in Regime IV, resulting in the self-organization into shish-kebab crystalline texture (SK) by means of the online shear rheo-optical methodRheo-optical method. The morphological details of the cascade evolution of the series of the dissipative structures are confirmed by means of the observation of the off-line transmission electron microscope images, taken by the special method as described in the text, along the fiber spinningFiber spinning line as a function of the distance along the spinneret. The results disclose the detailed pathway regarding the self-organization of SK through the series of various dissipative structures and general principles of the cascade pattern formationCascade pattern formation in nonequilibrium systems under external flow fields: both shear flow fields for UHMWPE and UHMWa-PS solutions universally evolve the same dissipative structures controlled by the work done and dissipated by the mechanical energy imposed to the systems. This chapter will also discuss the self-organization of extended chain crystal texture through dissipative structures under the hot drawing of the SK textures at temperatures close to but below their melting temperatures where the hot-drawn-induced sliding diffusion of chains occur along the chain axis in the shish and kebab crystals.