Azo polymers for colon-specific drug delivery. II: Influence of the type of azo polymer on the degradation by intestinal microflora

作者: G. Van den Mooter , C. Samyn , R. Kinget

DOI: 10.1016/0378-5173(93)90133-Z

关键词: Polymer(Hydroxyethyl)methacrylateAzobenzenePermeability (electromagnetism)GlycosidePolymer chemistryDrug deliveryChemistryMethyl methacrylateDegradation (geology)

摘要: Abstract Degradation by gastrointestinal microflora of different azo polymers was studied performing permeability experiments on isolated films and solution viscosity measurements before after incubation in Schaedler broth, inoculated with human feces. The investigated were monomer composition (hydroxyethyl methacrylate/methyl methacrylate ratio) aromatic group (divinylazobenzene, N , ′-bis(methacryloylamino)azobenzene ′-bis(methacryloyloxyethyloxycarbony-lamino)azobenzene). degradation the strongly affected hydrophilicity polymers. chain length groups, built into polymers, seems to be little influence rate

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