To synthesize the “sequence-controlled” polymers has become a novel area for polymer chemistry. Taking into consideration the special co-polymerization characteristic of 1,1-Diphenylethene derivatives (DPE-Rs, which cannot be homopolymerized), well-defined control of monomer sequence with DPE derivatives as monomers has been carried out utilizing living anionic polymerization. The approximately alternating in-chain functionalized polymers with DPE functional derivatives as monomer have been synthesized successfully. Meanwhile, sequence determination has been carried out in the anionic copolymerization of styrene and DPE-SiH, DPE-OMe/SiH, DPE-NMe2/SiH and DPE-(NMe2)2 via timing-sampling method under high vacuum condition. With varying of the feed ratios of St/DPEs and DPE structures, the sequential arrangements of functional DPE units in copolymer chains were regulated effectively. The sequence of copolymer chains was characterized and given by MALDI-TOF-MS and 1H NMR.

Sequence-determination and sequence-control in living anionic copolymerization of styrene and 1,1-diphenylethylene derivatives

251st National Meeting (2016)

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