Order-disorder transition methacrylate

The groups of Kramer and Hawker provided an example where the target polymer could be made using sequential CFR polymerizations, but CuAAC simplified the process and made it possible to obtain the polymer with a precise molecular weight and a low polydispersity index (PDl). Attempts to make poly(benzyl methacrylate)-b-poly(butyl acrylate) with equal volume fractions of each block to be used for the determination of order-disorder transition (ODT) led to materials with imprecise volume fractions and PDls higher than 1.3. Instead, by using preformed homopolymers that were then coupled by CuAAC, the authors were able to make a small library of covalent diblock copolymers with low PDIs, while also performing fewer total reactions. 

Table 4 Order-disorder transition temperature of polystyrene-b-poly( -alkyl methacrylate) diblock copolymers and the polystyrene-b-poly(MMAo.74-co-LMAo.26) copolymer system as determined from SANS experiments [113] and from BLCT calculations ...

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