Synthesis of Transparent Densely Crosslinked Polysiloxane with High Refractive Index
作者： Jin Wang , Ming-Liang Du , Cong-Sheng Xu , Han Zhu , Ya-Qin Fu
DOI: 10.1080/00222348.2012.679140
关键词:
摘要: Densely crosslinked polysiloxane, with high refractive index and transparency, was synthesized via co-hydrolysis/condensation then cured hydrosilylation a Pt catalyst. 29Si nuclear magnetic resonance (NMR) spectra were utilized to identify the process of characterize structures prepolymers. Fourier transform infrared spectroscopy (FTIR) used investigate reaction. The number-average molecular weight prepolymers determined be ca. 1200 g mol−1. Prepolymers index, above 1.52, synthesized, from which densely polysiloxane resins, transmittance about 99% nearly no absorption in visible range, prepared.
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