REX Isocyanate-based Coupling Reactions

Nyambo et investigated the combination of two potential toughening agents for PLA, i.e. hydrojyl-terminated hyperbranched poly(ester amide) and isocyanate-terminated prepolymer of butadiene (ITPB). Synergistic effects in impact strength were observed in PLA ternary blends containing 

The use of epojy-based coupling agents is well known to yield linear chain extension and/or branched structures (in function of the level/amount of epoxy functionalities), to improve the material properties and to widen the processing window of PLA. ° The main advantages of epoxy-based 

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