Janes Dustin W, Shanmuganathan Kadhiravan, Chou Daniel Y, Ellison Christopher J
Department of Chemical Engineering, The University of Texas-Austin, 200 East Dean Keeton Street, Stop C0400, Austin, Texas 78712, United States.
ACS Macro Lett. 2012 Sep 18;1(9):1138-1142. doi: 10.1021/mz300325g. Epub 2012 Sep 4.
Thiol-ene chemistry was harnessed to enable production of thermochemically stable thermoset fibers containing 50-87 wt % acrylated epoxidized soybean oil and 49-72% biobased carbon without using solvent or heat. In this demonstration, the fibers were made by simultaneous electrospinning and photocuring of a liquid monomer mixture, which could be translated to other fiber manufacturing processes such as melt blowing or Forcespinning. Scanning electron micrographs illustrate the fiber quality and an average diameter of about 30 μm. Photochemical conversion kinetics of functional groups during light exposure were measured by real-time Fourier transform infrared spectroscopy, providing insight into the advantages of using high-functionality monomers and thiol-ene chemistry in this application.
硫醇-烯化学被用于在不使用溶剂或加热的情况下，生产含有50-87 wt%丙烯酸化环氧化大豆油和49-72%生物基碳的热化学稳定热固性纤维。在本演示中，纤维通过同时对液体单体混合物进行静电纺丝和光固化制成，这一方法可转化为其他纤维制造工艺，如熔喷或强力纺丝。扫描电子显微镜图像展示了纤维质量以及约30μm的平均直径。通过实时傅里叶变换红外光谱法测量了光照期间官能团的光化学转化动力学，从而深入了解在该应用中使用高官能度单体和硫醇-烯化学的优势。
