Poly radiation crosslinking

Allcock, H. R., Kwon, S., Riding, G. H., Fitzpatrick, R. J., and Bennett, J. L., Hydrophilic poiyphosphazenes as hydrogels Radiation crosslinking and hydrogel characteristics of poly[bis-(methoxyethoxyethoxy)phosphazene], Biomaterials. 19, 509, 1988. 

Peppas N, Merrill E. Poly(vinyl alcohol) hydrogels reinforcement of radiation-crosslinked networks by crystallization. Journal of Polymer Science 1976, 14,441 457. 

Janik I, Kasprzak E, Al-Zier A, Rosiak JM (2003) Radiation crosslinking and scission parameters for poly(vinyl methyl ether) in aqueous solution. Nucl Instrum Methods Phys Res B... 

Schmidt T, Querner C, Arndt KF (2003) Characterization methods for radiation crosslinked poly(vinyl methyl ether) hydrogels. Nucl Instrum Methods Phys Res B 208 331-335... 

Zhu, G. M., Xu, Q. Y, Liang, G. Z., and Zhou, H. R 2005. Shap>e memory behaviors of sensitizing radiation crosslinked polycaprolactone with polyfunctional poly (ester acrylate). Journal of Applied Polymer Science 95 634-639. 

In addition to pore size, the mechanical strength of polymer substrates has an influence on the behaviour of cells, as cells sense their environment through the focal adhesions that attach the cytoskeleton to the scaffold.The mechanical properties of elastomeric poly(l,2-butadiene) (PB) honeycomb patterned films can be controlled by crosslinking the films under UV radiation.Crosslinking of the PB films resulted in a 15-fold increase in the elastic modulus but had no effect on the surface properties of the polymer. Murine fibroblasts exhibited stronger adhesions to the crosslinked PB films. When attached to a growth substrate, cells apply a traction force of 30 nN to the surface. Simulation of this force on the... 

Enzyme drugs have been coated with polyethylene glycols to mask the enzyme and prevent white blood cells from rapidly destroying the foreign material (16). Such masked drugs last longer and have increased effectiveness. Chapter 5, Section V, also contains a discussion about the use of radiation-crosslinked poly (ethylene oxide) for controlled drug-delivery systems as well as for blood filtration. 

Radiation crosslinking of poly[bis(2-(2-methoxyefhoxy)ethoxy)phosphazene] Effect on solid-state ionic conductivity. 1 14-16. 

Bennett, J. L., Dembek, A. A., AUcock, H. R., Heyen, B. J., Shriver, D. R, Radiation crosslinking of poly[hw(2-(2-methoxyethoxy)ethoxy)phosphazene] Effect on solid-state ionic conductivity. Chemistry of Materials, 1989, 1, 14—16. 

Bhari K, Mitomo H, Enjoji T, Yoshii F, Makuuchi K (1998), Radiation crosslinked poly(butylene succinate) foam and its biodegradation , Polym DegrdStab, 62, 551-57. 

A substantial intramolecular protective effect by phenyl groups in polymers is shown by the low G values for Hz and crosslinking in polystyrene (substituent phenyl) and in polyarylene sulfones (backbone phenyl), as well as many other aromatic polymers. The relative radiation resistance of different aromatic groups in polymers has not been extensively studied, but appears to be similar, except that biphenyl provides increased protection. Studies on various poly(amino acid)s indicate that the phenol group is particularly radiation resistant. 

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