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    ARTICLE

    One-Pot Synthesis of Thermoresponsive Cellulose-Based Miktoarm Graft Copolymer by Simultaneous ATRP and ROP

    Yadong Liu1, Guangcheng Huang1,2, Yuanyuan Pang1,2, Miaomiao Han1, Shengxiang Ji1,*

    Journal of Renewable Materials, Vol.3, No.2, pp. 113-119, 2015, DOI:10.7569/JRM.2014.634141

    Abstract In this work, we report a one-pot synthesis of amphiphilic miktoarm cellulose graft copolymers, cellulose (-graft-oligo(L-lactide))-graft-oligo(N-isopropylacrylamide) (Cell(-g-OLLA)-g-ONIPAM), with dual side chains of oligo(L-lactide) and oligo(N-isopropylacrylamide) using 2-bromoisobutyl bromide functionalized cellulose (Cell(-OH)-Br) as the macroinitiator, by simultaneously conducting ring-opening polymerization and atom transfer radical polymerization using Cu/CuBr/PMDETA/Sn(Oct)2 as the catalytic system. The chemical structures and thermal properties of Cell(-g-OLLA)-g-ONIPAMs were characterized with 1 H and 13C nuclear magnetic resonance spectroscopy, differential scanning calorimetry and thermal gravimetric analysis. Cell (-g-OLLA)-g-ONIPAM could self-assemble into micelles in the aqueous solution as confi rmed by environmental scanning electron microscopy and dynamic light More >

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