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首页> 外文期刊>Journal of Applied Polymer Science >Solvents for thermoporosimetry analysis of natural rubber networks
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Solvents for thermoporosimetry analysis of natural rubber networks

机译：天然橡胶网的热孔隙率分析用溶剂

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摘要

Thermoporosimetry is known as an analytical method to investigate network structures in swollen elastomers. Despite this interesting potential capability, only few investigations are published in literature which apply different solvents on differently crosslinked natural rubber samples. The choice of the solvent is critical as it strongly influences the separation of confined and bulk solvent transition signal, the confined solvent signal intensity and the peak width representing the pore size resolution. No critical comparison has been done in these investigations regarding the solvent choice related to peak separation, pore size resolution or signal intensity. Furthermore, no critical assessment is available relating thermoporosimetry results to solvent parameters to identify an optimal solvent regarding the mentioned criteria. This argument motivated the present investigation to identify the most appropriate solvents for the analysis of natural rubber compounds by thermoporosimetry. Different types of solvents (aliphatic, aromatic, non-polar, and polar) were selected and benchmarked against each other. It was concluded that n-heptane was identified as the best solvent for these investigations. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43998.
机译：热孔隙率法是研究溶胀弹性体中网络结构的一种分析方法。尽管具有这种令人感兴趣的潜在能力，但在文献中只有极少的研究发表，这些研究将不同的溶剂应用于不同的交联天然橡胶样品。溶剂的选择至关重要，因为它会严重影响受限和本体溶剂转换信号的分离，受限溶剂信号强度和代表孔径分辨率的峰宽。在这些研究中，关于与峰分离，孔径分辨率或信号强度有关的溶剂选择，没有进行关键的比较。此外，尚无将热孔隙率法测定结果与溶剂参数相关的严格评估，无法根据上述标准确定最佳溶剂。该论据激发了本研究的兴趣，以找出最合适的溶剂，用于通过热孔隙率法分析天然橡胶化合物。选择了不同类型的溶剂（脂肪族，芳香族，非极性和极性），并进行了基准比较。结论是正庚烷被认为是进行这些研究的最佳溶剂。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43998。

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