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Oriented polymeric sheets exhibiting dichroism and articles containing the same.
(2007-12-20)
Provided is an oriented polymeric sheet comprising a photochromic-dichroic material, wherein the sheet exhibits dichroism in an activated state. Also provided is a multilayer composite comprising at least a support layer ...
Preparation of a novel freeze thawed poly (vinly alcohol) composite hydrogel for drug delivery applications
(Elsevier, 2007-09)
Poly(vinyl alcohol) (PVA) is a water-soluble, biocompatible and biodegradable polymer, which has been widely applied in biomedical fields. In this paper, novel physically cross-linked hydrogels composed of PVA and comprising ...