Catalyzed Nucleation of Poly (Vinyl Chloride)

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Abstract
Microscopically visible crystallization in a typical non‐crystallizing organic polymer ‐ poly(vinyl chloride) (PVC) is achieved by dissoloving it in an appropriate solvent (cyclohexanone) and inducing the nucleation by introducing various insolube crystallization cores ‐ microcrystals of noble metals (Au, Pd, Pt, Rh, Ir, Ru, Os). It is established that the higher the melting temperature of the metal the higher its activity as a crystallization core in the heterogeneous nucleation of PVC.The reverse process‐oriented crystallization of a foreign substance ‐ NaCl crystals on PVC films is also demonstrated. This result gives an indication of precrystalline structures in seemingly amorphous PVC films.

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