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首页> 外文期刊>Journal of Applied Polymer Science >Properties of a few aromatic poly(thioether ketones) as sulfur-containing high-performance polymers
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Properties of a few aromatic poly(thioether ketones) as sulfur-containing high-performance polymers

机译：几种芳族聚（硫醚酮）作为含硫高性能聚合物的性能

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Several basic physical properties of poly(thioether ketones) (PTEKs) were studied in comparison with corresponding ether analogs, poly(ether ketones) (PEKs), and various typical engineering plastics. The water absorption of PTEK (0.13%) was lower than that of the corresponding PEK (0.16%), probably because of the hydrophobic nature of the sulfide group. The dielectric breakdown strengths of PTEK and PEK were much greater than that of commercially available polymers. PTEK had higher dielectric breakdown strength than PEK. Although the volume resistivity of PEK considerably decreased after water absorption, that of PTEK remained high even after water absorption. wPTEK exhibited a remarkably high refractive index (n(D)(23) 1.66). alpha-Transition corresponding to T-g was observed at a high temperature (PTEK-1, 235degreesC; PTEK-2, 269degreesC) in the dynamic mechanical analysis. Young's modulus and tensile strength of PTEK were comparable to those of commercial high-performance polymers. PTEK also exhibited excellent flame resistance. Although the linear thermal expansion coefficient of PTEK was greater than that of PEEK, it was still within a practically acceptable level. (C) 2004 Wiley Periodicals, Inc. [References: 28]
机译：与相应的醚类似物，聚醚酮（PEK）和各种典型的工程塑料相比，研究了聚硫醚酮（PTEK）的几种基本物理性能。 PTEK（0.13％）的吸水率低于相应PEK（0.16％）的吸水率，可能是由于硫化物基团的疏水性。 PTEK和PEK的介电击穿强度远高于市售聚合物。 PTEK具有比PEK更高的介电击穿强度。尽管PEK的体积电阻率在吸水后显着降低，但是PTEK的体积电阻率即使在吸水后仍保持高。 wPTEK表现出非常高的折射率（n（D）（23）1.66）。在动态力学分析中，在高温（PTEK-1，235℃; PTEK-2，269℃）下观察到对应于T-g的α-转变。 PTEK的杨氏模量和拉伸强度与商业高性能聚合物相当。 PTEK还具有出色的阻燃性。尽管PTEK的线性热膨胀系数大于PEEK的线性热膨胀系数，但仍处于实际可接受的水平内。 （C）2004 Wiley Periodicals，Inc. [参考：28]

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