Latex State and Solid-State NMR Spectroscopy of Elastomers

机译：弹性体的乳胶状态和固态NMR光谱

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Latex state NMR spectroscopy and field gradient fast magic angle spinning solid-state NMR spectroscopy were utilized for structural characterization of rubbery polymers and crosslinked rubbery materials. High resolution NMR spectra for elastomers were achieved either through Brownian motion of a latex dispersion or fast magic angle spinning for a solid. Sequence distribution of cis-1,4-, trans-1,4- and 1,2-butadiene units was investigated for polybutadiene through latex state NMR spectroscopy because the polybutadiene used in this work was prepared by emulsion polymerization. Crosslinking junctions of vulcanized natural rubber were analyzed by field gradient fast magic angle spinning solid-state NMR spectroscopy. The vulcanized natural rubber with quaternary carbons linking to sulfur as the crosslinking junction was found to be superior in mechanical properties compared to the rubber samples with tertiary carbons linking to sulfur.

机译：乳胶状态NMR光谱和场梯度快速魔法角旋转固态NMR光谱用于橡胶聚合物的结构表征和交联的橡胶状物质。通过胶乳分散体的褐色运动或用于固体的快速魔法角度来实现弹性体的高分辨率NMR光谱。通过胶乳态NMR光谱研究了CIS-1,4-，反式-1,4-和1,2-丁二烯单元的序列分布，因为通过乳液聚合制备该工作中使用的聚丁二烯。通过现场梯度快速魔法角度纺丝固态NMR光谱分析硫化天然橡胶的交联连接。硫化天然橡胶，与硫磺链接作为交联结的季碳，与与硫磺的橡胶样品相比，机械性能优异。

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《Symposium on lNMR spectroscopy of polymers: Innovative strategies for complex macromolecules》|2011年||共20页
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Seiichi Kawahara;
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1. Investigations on the film-formation process of latex dispersions by solid-state NMR spectroscopy [J] . Rottstegge J., Traub B., Wilhelm M., Macromolecular chemistry and physics . 2003,第5a6期

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2. Characterization of Polysulfone and Polysulfone/Vanillin Microcapsules by ~1H NMR Spectroscopy, Solid-State ~(13)C CP/ MAS-NMR Spectroscopy, and N2 Adsorption-Desorption Analyses [J] . Brisa Pena, Louis-Charles de Menorval, Ricard Garcia-Valls ACS applied materials & interfaces . 2011,第11期

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3. Advanced Approaches to Effective Solid-state Analysis: X-Ray Diffraction, Vibrational Spectroscopy and Solid-state NMR [J] . Frederick G. Vogt, Glenn R. Williams American pharmaceutical review . 2010,第7期

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4. Latex State and Solid-State NMR Spectroscopy of Elastomers [C] . Seiichi Kawahara Symposium on lNMR spectroscopy of polymers: Innovative strategies for complex macromolecules . 2011

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5. Improved Characterization of Pure and Formulated Active Pharmaceutical Ingredients by Fast Magic Angle Spinning Solid-State NMR Spectroscopy [D] . Wijesekara, Anuradha V. 2020

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Latex State and Solid-State NMR Spectroscopy of Elastomers

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