Latex State and Solid-State NMR Spectroscopy of Elastomers

机译：弹性体的乳胶态和固态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：乳胶态NMR光谱和场梯度快速幻角旋转固态NMR光谱用于橡胶状聚合物和交联橡胶状材料的结构表征。弹性体的高分辨率NMR光谱是通过乳胶分散液的布朗运动或固体的快速魔术角纺丝获得的。通过乳胶态NMR光谱研究了聚丁二烯的顺式1,4-，反式1,4-和1,2-丁二烯单元的序列分布，因为在这项工作中使用的聚丁二烯是通过乳液聚合制备的。通过场梯度快速魔术角旋转固态NMR光谱分析了硫化天然橡胶的交联结。与具有叔碳连接到硫的橡胶样品相比，发现具有以硫连接的季碳连接到硫的硫化天然橡胶的机械性能优越。

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《NMR spectroscopy of polymers: Innovative strategies for complex macromolecules》|2010年|p.475-494|共20页
会议地点 Honolulu HI(US);Honolulu HI(US)
作者
Seiichi Kawahara;
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Department of Materials Science and Technology, Faculty of Engineering,Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan;

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正文语种 eng
中图分类聚合反应过程;
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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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6. Magic angle spinning carbon-13 NMR of tobacco mosaic virus. An application of the high-resolution solid-state NMR spectroscopy to very large biological systems. [O] . M A Hemminga, W S Veeman, H W Hilhorst, 1981

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Latex State and Solid-State NMR Spectroscopy of Elastomers

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