Polyoxymethylene Polypeptides

Hydrolytic degradation is especially important in polymers with hydrolyzable links between the CRUs. Thus, polyesters can be saponified to yield the starting materials from which they were formed. Acetal links in synthetic polymers such as polyoxymethylene, or in natural polymers such as cellulose, can be hydrolyzed with acids. However, the resistance to hydrolysis depends very much on the structure of the polymer for example, polyesters of terephthalic acid are very difficult to hydrolyze while aliphatic polyesters are generally easily hydrolyzed. Polyamides are normally much more resistant to hydrolysis than polyesters they may be cleaved by the methods usually employed for polypeptides and proteins. 

Polypeptide chain, 43-2 Polysulfone, in biomedical applications, 40-12 Polytetrafluoroethylene, see PTFE Polyurethanes, in biomedical applications, 40-12 POM Polyoxymethylene, in... 

Polymorphism 6 Polyoxymethylene 279, 281 Polyoxypropylene 279, 281 Polypentene-1 279,281 Polypeptides 146,333 Polyphenylene oxide 279, 281 Polypropylene 12, 264, 268, 279, 281 Polysaccharides 329 Polystyrene 257, 269 Polystyrene-butadiene copolymer 257, 269, 274... 

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