Nano-Morphology Formation in Polymer Blends without and with Hydrogen Bonding

Mechanism of Nano-Morphology Formation in Polymer Blends without and with Hydrogen Bonding 

Systematic study of the mechanism of formation of the 3-D network in the case of polymer blends with H-bonding demonstrated that this process takes place in the melt before the drawing step, and the subsequent cold drawing results in drastic reduction of the diameters of the network elements. This conclusion was proved by SEM observation of melt blended samples taken immediately after the extruder die. They were treated with water in order to extract the PVA and analyzed by SEM. A blend of PVA with glycol-modified poly(ethylene terephthalate) (PETG) was used for these experiments. 

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