Dissolution Mechanism of Semicrystalline Poly ( viny 1 alcohol ) in Water

  title={Dissolution Mechanism of Semicrystalline Poly ( viny 1 alcohol ) in Water},
  author={S K Surya K Mallapragada and Nikolaos A. Peppas},
Changes occurring in the degree of crystallinity and lamellar thickness distribution of poly(viny1 alcohol) (PVA) samples during dissolution in water were investigated. PVA samples of three different molecular weights were crystallized by annealing a t 90,110, and 120°C. The initial degrees of crystallinity measured by differential scanning calorimetry (DSC) and by attenuated total reflection Fourier transform infrared spectroscopy (ATRFTIR) varied from 43 to 60% and the average lamellar… CONTINUE READING


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Peppas , A New Model for Dissolution of Semicrystalline Polymers , presented at AIChE National Meeting , Miami , November , 1995

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