Novel Synthesis of Cellulose-Based Diblock Copolymer of Poly(hydroxyethyl methacrylate)‎ by Mechanochemical Reaction

Abstract EN

The mechanical fracture of polymer produces polymeric free radical chain-ends, by which liner block copolymers have been synthesized.

A diblock copolymer of microcrystalline cellulose (MCC) and poly 2-hydroxyethyl methacrylate (pHEMA) was produced by the mechanochemical polymerization under vacuum and room temperature.

The fraction of pHEMA in MCC-block-pHEMA produced by the mechanochemical polymerization increased up to 21 mol% with increasing fracture time (~6 h).

Then, the tacticities of HEMA sequences in MCC-block-pHEMA varied according to the reaction time.

In the process of mechanochemical polymerization, cellulose could play the role of a radical polymerization initiator capable of controlling stereoregularity.