Polyethylene glycol diacrylates

Immobilized cells have either been fixed or bonded to a surface, or entrapped in a gel matrix. Immobilization of vegetative cells for hydroxylations has been achieved in polyacrylamide, polyethylene glycol diacrylate, calcium alginate, and agar gels with varying success30,31. 

Shantha, K.L. Harding, D.R.K. Preparation and in vitro evaluation of poly(Al-vinyl-2-pyrrohdone-polyethylene glycol diacrylate)-chitosan interpolymeric pH-responsive hydrogels for oral drug delivery. Int. J. Pharm. 2000, 207, 65-70. 

Yang, F., Williams, C. G., Wang, D. A., Lee, H., Manson, P. N., Elisseeff, J. (2005). The effect of incorporating RGD adhesive peptide in polyethylene glycol diacrylate hydrogel on osteogenesis of bone marrow stromal cells. Biomaterials, 26, 5991-5998. 

Zhong C, Wu J, Reinhart-King CA, Chu CC. Synthesis, characterization and cytotoxicity of photo-crosshnked maleic chitosan-polyethylene glycol diacrylate hybrid hydrogels. 

The gel polymer network strucmre can be varied to that of combs and ladders by changing a kind of acrylate monomer. It also is possible to make an ion-conductive gel with a polyethylenic strucmre by cross-linking a difunctional acrylate compound such as polyethylene-glycol-diacrylate. Valence Inc. was not able to commercialize this battery, although it was proceeding with the development of polymer batteries that combined VjOg positive electrode and lithium metal negative electrode by this electrolyte. Table 21.1 shows the ionic conductivities of various gel polymer electrolytes. 

Matsubara et al., applied reactive pyrolysis gas chromatography in the presence of organic alkali to study the network structure of a UV.-cured acrylic ester prepared from polyethylene glycol diacrylate. An a-amino-aUcylphenone type photoinitiator was used. The network formation can be illustrated as follows... 

Ultraviolet curable humectants have been described that may reduce the drying time of a printed image in comparison to non-curable humectants. Examples of such materials are polyethylene glycol diacrylates or highly ethoxylated derivatives of trimethylol propane triacrylate and bisphenol A diacrylate, cf. Figure 3.9. These compounds are used in combination with common photopolymerization initiators. 

Polyethylene glycol diacrylate with 4-(2-hydroxyethoxy) phenyl- (2-propyl) ketone... 

Paxton, J.Z., Donnelly, K., Keatch, R.P. et al. 2009. Engineering the bone-ligament interface using polyethylene glycol diacrylate incorporated with hydroxyapatite. Tissue Eng Part A 15(6) 1201-9. 

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