文献类型：期刊文献

英文题名：Insight into the in-situ solvent-free lipase-catalyzed coating on cotton with polyesters

作者：Zhao, Xiaoman[1,2];Li, Yujiao[3];Fu, Jiajia[4];Wang, Hongbo[4];Hong, Jianhan[1,2]

机构：[1]Shaoxing Univ, Coll Text & Garment, Shaoxing 312000, Peoples R China;[2]Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China;[3]Natl Intellectual Property Off, Patent Off, Hubei Ctr Patent Examinat Cooperat, Wuhan 430205, Peoples R China;[4]Jiangnan Univ, Jiangsu Engn Technol Res Ctr Funct Text, Wuxi 214122, Jiangsu, Peoples R China

年份：2021

卷号：102

起止页码：82

外文期刊名：PROCESS BIOCHEMISTRY

收录：SCI-EXPANDED(收录号：WOS:000621443800009)、、WOS

基金：This study was supported by the Project for Research Start-up in Shaoxing University (No. 20195027), Scientific Research Project of Shaoxing University (No. 2019LG1015), Applied Research Project of Public Welfare Technology of Zhejiang Province (No. LGG20E030002 and LGJ21E030001), Applied Research Project of Project Public Welfare Technology of Shaoxing City (No. 2018C10016). This work was also funded by Key Projects of governmental cooperation in international scientific and technological innovation (No. 2016 YFE0115700), Fundamental Research Funds for the Central Universities (No. JUSRP51622A), the National Natural Science Foundation of China (No. 31470509), the 111 Project (No. B17021), and Jiangsu Planned Projects for Postdoctoral Research Funds (No. 2018K018A).

语种：英文

外文关键词：Optimization; Lipase from Thermomyces lanuginosus; In-situ hydrophobic modification; Cotton cellulose; Polyesters

外文摘要：In-situ solvent-free lipase-catalyzed coating on cotton with polyesters was optimized using the orthogonal experiment design. Lipase from Thermomycel lanuginosus (TLL) was used directly without any treatment. Enzyme loading, reaction time and temperature were chosen as factors, and water contact angle (WCA) as the index. When reactions were performed at 40 degrees C for 9 h with 45 % v/v of lipase in water bath, the optimal WCA of 119.6 degrees was achieved. NMR, MALDI-TOF mass spectra and FTIR spectra proved the chemical linkage of poly(ethylene glutarate) onto C6 from cotton. The physical properties of cotton were not much affected during the modification due to its mild conditions. Furthermore, in-situ enzymatic synthesis of poly(propylene glutarate) gave better hydrophobicity with an increase of 7.86 % in WCA compared with different substrates. Ultrasound pretreatment and vacuum significantly improved the enzymatic modification. In-situ lipase-catalyzed synthesis of poly(propylene glutarate) on cotton cellulose with ultrasound pretreatment (30 degrees C for 15 min at 120 W) and vacuum (35 degrees C for 9 h), gave the best WCA of 140.4 degrees and wetting time of 972 s. The investigation on the application of solvent-free lipase-catalyzed polymerization on hydrophobic modification of cotton cellulose provides a novel and optimal approach for the environmental friendly modification process.