Quasi-block copolymer libraries on demand via sequential RAFT polymerization in an automated parallel synthesizer

A convenient synthetic method for the systematic preparation of quasi-diblock copolymer libraries utilizing a sequential RAFT polymerization strategy is described. This method utilizes a parallel synthesizer and allows the unattended and fully automated synthesis of this type of library in a short period of time. The materials obtained in this investigation have shown properties very similar to those expected in “pure” diblock copolymers as determined by differential scanning calorimetry. The described method can be a useful and less expensive alternative for the rapid preparation and screening of block copolymer libraries.