文献类型：期刊文献

英文题名：Enhancement of Hydrophobic Properties of Cellulose Fibers via Grafting with Polymeric Epoxidized Soybean Oil

作者：Huang, Xujuan[1] Wang, Aiting[2] Xu, Xu[3] Liu, He[1] Shang, Shibin[1]

第一作者：Huang, Xujuan

通信作者：Liu, H[1];Shang, SB[1];Xu, X[2]|[a0005b73ee31f1d2870d1]徐徐;

机构：[1]Chinese Acad Forestry, Natl Engn Lab Biomass Chem Utilizat, Key & Lab Forest Chem Engn,State Forestry Adm, Key Lab Biomass Energy & Mat,Inst Chem Ind Forest, Nanjing 210042, Jiangsu, Peoples R China;[2]Qingdao Univ Sci & Technol, Qingdao 266042, Shandong, Peoples R China;[3]Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Jiangsu, Peoples R China

年份：2017

卷号：5

期号：2

起止页码：1619-1627

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20170603336762);Scopus(收录号：2-s2.0-85011805739);WOS:【SCI-EXPANDED(收录号:WOS:000393634600044)】；

基金：This work was supported by the National Science & Technology Pillar Program during the 12th Five-year Plan Period (2015-BAD14B06), the National Natural Science Foundation of China (31200446), the Natural Science Foundation of Jiangsu Province of China (BK20140973), and the Foundation of Jiangsu Province Biomass Energy and Material Laboratory (JSBEM-S-201504).

语种：英文

外文关键词：Cellulose; Epoxidized soybean oil; Surface modification; Hydrophobic properties

摘要：We report on an efficient method for the formation of modified cellulose-based materials with enhanced hydrophobic properties, formed by grafting with polymeric epoxidized soybean oil (ESO) as a renewable, environmentally friendly, and low cost raw material. The grafting process occurred via ring-opening polymerization, wherein the cellulose hydroxyl groups acted as initiators in the presence of a SnCl4 catalyst, linking the cellulose fibers and ESO via ether linkages, thereby forming a polymeric matrix. The surface polarity was therefore decreased by the substitution of cellulose hydroxyl groups for long-chain hydrophobic alkane moieties from ESO. The water contact angle of modified filter paper reached 145.1 degrees with the surface free energy decreasing to 22.07 mJ m(-2) and a hydration free energy of -13.09 mJ m(-2). The presence of polymeric ESO nanoparticles on the modified cellulose fibers suggested that the hydrophobicity was not only dependent on the surface composition but was also closely related to the surface morphology. To reveal the effects of surface morphology on hydrophobicity, smooth cellulose films anchored to mica plates via PVAm with a surface roughness of 1.698 nm were prepared by spin coating and modified with ESO. The thus-formed modified cellulose films also contained polymeric ESO nanoparticles which increased their roughness and enhanced their hydrophobic properties.