UPs with Incorporated Perfluoropolyether Segments

The materials exhibit some unusual properties. The structure of the flu-orinated polyether segments affect important properties of the UPRs. Phase separation was observed. At a low molecular weight (1100) of the fluorinated macromonomer, a very high adhesion of the fluorine-rich phase with the matrix was found. 

The morphology and its effect on resilience, on the behavior in flexural and impact tests were investigated. In general, an increase in toughness with respect to standard UPRs was observed. 

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