文献类型：期刊文献

中文题名：两亲性纤维素接枝聚脱氢枞酸共聚物的制备及性能研究

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

作者：俞娟[1] 刘少峰[1] 刘玉鹏[1,2] 王春鹏[1,2] 王基夫[1,2] 储富祥[1,2]

第一作者：俞娟

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]|[a0005728d87cb2daf502d]储富祥;[a0005d1d71d6ef8f29ff7]王基夫;[a00058ff68110c833b641]王基夫;

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室;[2]中国林业科学研究院林业新技术研究所

年份：2016

卷号：0

期号：5

起止页码：591-598

中文期刊名：高分子学报

外文期刊名：Acta Polymerica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：中央级公益性科研院所基本科研业务费专项资金(项目号CAFYBB2016ZD007);国家自然科学基金(基金号31570579)资助项目

语种：中文

中文关键词：纤维素;脱氢枞酸;两亲性;原子转移自由基聚合

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

分类号：TQ351.4

摘要：通过均相原子转移自由基聚合法(ATRP)将生物质基疏水性松香单体(脱氢枞酸(2-甲基丙烯酰氧基乙基)酯,MAEDA)接枝到纤维素骨架上合成了全生物质基两亲性的纤维素-g-聚脱氢枞酸接枝共聚物(cellulose-g-PMAEDA).ATRP反应过程动力学研究表明cellulose-g-PMAEDA接枝共聚物的合成过程是活性可控的;傅里叶红外光谱(FTIR)、核磁共振氢谱(1H-NMR)、凝胶色谱(GPC)和X射线衍射(XRD)结果证实了cellulose-g-PMAEDA接枝共聚物的成功合成;由于聚脱氢枞酸侧链的引入,cellulose-g-PMAEDA接枝共聚物的热稳定性,疏水性能明显提高,并且具有紫外吸收性能;动态光散射仪和透射电镜结果表明两亲性cellulose-g-PMAEDA接枝共聚物能够在水溶液中自组装成平均粒径约为200 nm左右的纳米微球,并且该纳米微球具有以纤维素为壳,聚脱氢枞酸酯为核的核壳结构.
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 Li Cl / 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 Cu Br / PMDETA. Kinetic studies indicated the polymerization process was controlled and ＂living＂. The successful formation of copolymers was confirmed by Fourier transform infrared spectroscopy（ FTIR）,1H nuclear magnetic resonance（1H-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 celluloseg-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-gPMAEDA 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.