文献类型：期刊文献

英文题名：Synthesis and Characterization of Amphiphilic Cellulose-g-PMAEDA Graft Copolymers

作者：Yu, Juan[1,2,3] Liu, Shao-feng[1,2,3] Liu, Yu Peng[1,2,3,4] Wang, Chun-peng[1,2,3,4] Wang, Ji-fu[1,2,3,4] Chu, Fu-xiang[1,2,3,4]

第一作者：Yu, Juan

通信作者：Wang, JF[1];Chu, FX[1];Wang, JF[2];Chu, FX[2];Wang, JF[3];Chu, FX[3];Wang, JF[4];Chu, FX[4]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]State Forestry Adm, Key Lab Biomass Energy & Mat, Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China;[3]State Forestry Adm, Key Lab Biomass Energy & Mat, Key & Lab Forest Chem Engn, Nanjing 210042, Jiangsu, Peoples R China;[4]Chinese Acad Forestry, Inst Forest New Technol, Beijing 100091, Peoples R China

年份：2016

期号：5

起止页码：591-598

外文期刊名：ACTA POLYMERICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000377053900006)】；

语种：英文

外文关键词：Cellulose; Dehydroabietic acid; Amphiphilic; Atom transfer radical polymerization

摘要：Sustainable rosin polymer grafted cellulose copolymers (cellulose-g-PMAEDA) were prepared by ATRP using microcrystalline cellulose as raw material in homogeneous media. In particular, the microcrystalline cellulose was transformed into 2-bromoisobutyryl-functionalizaed cellulose in LiCl/DMAc homogeneous media, subsequently, the renewable and hydrophobic monomer, (2-methacryloyloxy) ethyl ester of dehydroabietic acid (MAEDA), was used for the ATRP polymerization of side chains of the amphiphilic cellulose-g-PMAEDA under the catalysis system of CuBr/PMDETA. Kinetic studies indicated the polymerization process was controlled and "living". The successful formation of copolymers was confirmed by Fourier transform infrared spectroscopy (FTIR), H-1 nuclear magnetic resonance (H-1-NMR), gel permeation chromatography (GPC) and X-Ray diffraction (XRD). Owing to the introduction of PMAEDA side chains, the cellulose-g-PMAEDA graft copolymers showed enhanced thermal stability which was confirmed by thermal gravity analysis (TGA). The UV absorption spectrograph and water contact angle measurement were employed to investigate the UV absorption ability and hydrophobicity of the prepared cellulose-g-PMAEDA graft copolymers. The results showed that the attachment of rosin based polymer side chains imparted the excellent UV absorption ability and good hydrophobicity to the cellulose-g-PMAEDA graft copolymers. The self-assembly behavior of the cellulose-g-PMAEDA graft copolymers was also studied by dynamic light scattering (DLS) and transmission electron microscopy (TEM). The DLS results showed that the cellulose-g-PMAEDA graft copolymers could form micelles with Z-average size of 200 nm and PDI of 0.195; the TEM results further illustrated that cellulose-g-PMAEDA graft copolymers could form spherical micelles with the core-shell structure and the diameters of micelles were around 200 nm, which could be used in drug delivery.