Hydrophilic polyphosphazenes as hydrogels: radiation cross-linking and hydrogel characteristics of poly[bis(methoxyethoxyethoxy)phosphazene].
The water-soluble polyphosphazene, [NP(OCH2CH2OCH2CH2OCH3)2]n, cross-links when exposed to gamma rays to form hydrophilic, water-swellable membranes and hydrogels. The degree of cross-linking increases with irradiation dose in a manner that can be utilized to change the properties. gamma irradiation studies of the small molecule model compound, [NP(OCH2CH2OCH2CH2OCH3)2]4, were also carried out to probe the relationship between irradiation dose and cross-link density.
Allcock
H R
HR
Department of Chemistry, Pennsylvania State University, University Park 16802.
Kwon
S
S
Riding
G H
GH
Fitzpatrick
R J
RJ
Bennett
J L
JL
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003692:Delayed-Action Preparations; D004058:Diffusion; D005782:Gels; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D015394:Molecular Structure; D009943:Organophosphorus Compounds / Q000138:chemical synthesis / Q000528:radiation effects; D011108:Polymers / Q000138:chemical synthesis / Q000528:radiation effects; D012995:Solubility
D003692:Delayed-Action Preparations; D005782:Gels; D008567:Membranes, Artificial; D009943:Organophosphorus Compounds; D011108:Polymers; C058666:poly(bis(methoxyethoxyethoxy)phosphazene)