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In this work, the relationship between the polymer-solvent interaction and the gelation behavior of polyvinyl chloride (PVC) solutions was studied. The degree of the polymer-solvent interaction in polyvinyl chloride (PVC)/tetrahydrofuran (THF), PVC/morpholine (MOR) and PVC/dioxane (DOA) solutions was estimated using static light scattering analysis. The results show that PVC/THF solution have higher...
In this work, the network structure and chain mobility of dried polyvinyl chloride/dioxane (PVC/DOA) gels prepared by the freeze-drying method are studied by SEM, FTi.r., WAXD, EDTA and pulsed NMR analyses. The results of FTi.r. and WAXD show no remarkable change in the crystallinity of either dried or wet PVC gels; however, the elasticity of wet gels and the gelation time of semi-dilute solutions...
In this work, the structure and physical properties of polyvinyl chloride (PVC) gels prepared from the solutions of bromobenzene (BrBz) and dioxane (DOA) under different gelation conditions are studied. The average size of the junction point for PVC gels in the initial gelation state are the combination of ca. two to three chains in width and ca. six to eight syndiotactic sequences in length to form...
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