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 scattering analyses. The… More >
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