文献类型：期刊文献

英文题名：Multistage Porous Composite Membrane with the Temperature-Sensitive Moisture Management Prepared from Polyurethane/Dendrimer

作者：Yang, Qun[1,2,3]; Qiu, Huili[1]; Ta, Sixuan[1]; Zhou, Weimian[1]; Zhu, Jie[1]; Xu, Lihui[1]; Pan, Hong[1]; Wang, Jiping[1,3]

机构：[1] School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai, 201620, China; [2] Key Laboratory of Cleaning Dyeing and Finishing Technology of Zhejiang Province, Shaoxing University, Zhejiang, Shaoxing, 312000, China; [3] Shanghai Engineering Research Center for Clean Production of Textile Chemistry, Shanghai, 201620, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240049524)

语种：英文

外文关键词：Acrylic monomers - Amides - Composite membranes - Dendrimers - Differential scanning calorimetry - Fourier transform infrared spectroscopy - Grafting (chemical) - Hydrophilicity - Hydrophobicity - Moisture - Polyurethanes - Spectrometers - Textiles

外文摘要：This study aimed to prepare and characterize temperature-sensitive dendrimers (PNIPAM-PAMAM) by grafting poly(n-isopropylacrylamide) (PNIPAM) to the end of dendritic macromolecules (PAMAM). The dendrimers were then compounded onto a multistage porous polyurethane (PU) membrane using a coating method to create a temperature-sensitive moisture management membrane (PU-PNIPAM-PAMAM). The molecular structure and temperature-sensitive responsiveness of PNIPAM-PAMAM were analyzed using Fourier transform infrared spectroscopy (FTIR), 1H-NMR analysis, differential scanning calorimetry analysis (DSC) and UV-Vis spectrometer. The microstructure and temperature-sensitive moisture permeability of PU-PNIPAM-PAMAM were studied using scanning electron microscope (SEM) and water vapor transmission (WVT) to investigate the effect of PNIPAM-PAMAM on the polyurethane membrane by. The results showed that the lower critical solution temperature (LCST) decreased when PNIPAM was grafted to PAMAM. The results also indicated that the construction of PNIPAM-PAMAM did not change the multistage porous nature of membrane. The PU-PNIPAM-PAMAM membrane had temperature-sensitive hydrophilic-hydrophobic transition property, exhibited hydrophilicity at temperature below the LCST (30 °C), while exhibiting hydrophobicity at the temperature above this temperature. Furthermore, the introduction of PNIPAM-PAMAM improved temperature-sensitive moisture permeability of PU-PNIPAM-PAMAM multistage porous membrane from 4843.2±1.8 g/(m2·24h) to 6857.8±2.1 g/(m2·24h) at 50 °C when the mass fraction of PNIPAM-PAMAM was 3%. Therefore, PU-PNIPAM-PAMAM multistage porous composite membrane have potential for development as a temperature-sensitive textile material for moisture management. ? 2024, The Authors. All rights reserved.