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首页> 外文会议>NMR spectroscopy of polymers: Innovative strategies for complex macromolecules >Application of Melt-State NMR Spectroscopy for Polyolefin Characterization in Industry
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Application of Melt-State NMR Spectroscopy for Polyolefin Characterization in Industry

机译：熔融态核磁共振谱在工业表征聚烯烃中的应用

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摘要

Melt-state ~(13)C NMR spectroscopy of polyolefins has been shown to be sensitive, quantitative and allow rapid sample throughput. The method was implemented in an industrial research and development environment and has proved to be both highly sensitive and versatile. For general problem solving melt-state MAS NMR was found to complement standard high-temperature solution state NMR. The main strength of the technique was found to be the possibility of high throughput, due to the combination of high sensitivity and rapid sample preparation. This was most clearly demonstrated for materials of low solubility. A broad scope of application of melt-state MAS NMR is demonstrated through the study of the whole family of polyolefins including HDPE homopolymers, HDPE copolymers, LLDPE, LDPE, LDPE copolymers, PP homopolymers and PP copolymers. The application of the techniques to the study of fractionated materials and filled materials is also demonstrated. Some key advantages as compared to standard solution-state NMR spectroscopy are emphasized and recent research on decoupling in the molten-state is presented.
机译：聚烯烃的熔融态〜（13）C NMR光谱显示出灵敏，定量且允许快速样品通量的特点。该方法是在工业研发环境中实施的，已被证明具有高度的敏感性和通用性。对于一般问题的解决，发现熔融态MAS NMR是对标准高温溶液态NMR的补充。由于高灵敏度和快速样品制备的结合，发现该技术的主要优势是可以实现高通量。对于低溶解度的材料最清楚地证明了这一点。通过对包括HDPE均聚物，HDPE共聚物，LLDPE，LDPE，LDPE共聚物，PP均聚物和PP共聚物在内的整个聚烯烃系列的研究，证明了熔融态MAS NMR的广泛应用范围。还演示了该技术在分馏物料和填充物料研究中的应用。强调了与标准溶液态NMR光谱相比的一些关键优势，并提出了有关熔融态去耦的最新研究。

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