Weitere Kapitel dieses Buchs durch Wischen aufrufen
Polymer nanoparticles containing near-infrared absorbing dye (maximum absorption at about 830 nm) were prepared by a two-staged emulsion copolymerization of styrene (ST), acrylonitrile (AN), and benzoic acid in the presence of sodium dodecyl sulfate. After the two-staged polymerization process, the conversion rate can be increased to 96 % or higher. The emulsion was stable, and little precipitation was observed. The prepared polymer nanoparticle was characterized with TEM, UV-Vis spectroscopy, DSC, and TGA. Thin coatings were prepared with the IR830-containing emulsion and a small amount of other additives. The polymer nanoparticles in the coating would keep the original spherical structure and clear outline could be observed, provided that the coating was dried at a proper temperature, such as at 100 °C or at a lower temperature. However, the infrared dye-containing polymer nanoparticles would be readily fused under image-wise IR laser exposure (exposure dose: 200 mJ/cm2). As a result, the laser-exposed areas of the coating firmly adhered to the substrate and showed enough resistance to water flushing, whereas the non-exposed areas were easy to develop.
Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten
Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:
Khosravi, A., King, J. A., Jamieson, H. L., & Lind, M. L. (2014). Latex barrier thin film formation on porous substrates. Langmuir, 30(46), 13994–14003. doi: 10.1021/la502812d
Sakaguchi, Y., Kawahara, K., Yamada, T., Okazaki, Y., & Imah-ashi, S. (2004). Diffusion of unreacted monomers detected by ATR FTIR spectroscopy in a photosensitive printing plate after the photoreaction. Journal of Applied Polymer Science,92(5), 2903–2907. CrossRef
Shi, W. (2007). Environment friendly chemistry-free CTP plates. Print Field,8, 20–24.
- Preparation and Properties of Infrared Heat-Sensitive Polymer Nanoparticles
- Springer Singapore
- Chapter 109