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首页> 外文期刊>Journal of Applied Polymer Science >Comparison between the effects of alcohols and diols on polymethyl-methacrylate and polyacrylamide with positron annihilation lifetime and electric conductivity measurements
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Comparison between the effects of alcohols and diols on polymethyl-methacrylate and polyacrylamide with positron annihilation lifetime and electric conductivity measurements

机译：通过正电子an灭寿命和电导率测量比较醇和二醇对聚甲基丙烯酸甲酯和聚丙烯酰胺的影响

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摘要

Comparison between the effect of alcohols and diols on poly(methylmethacrylate) (PMMA) and polyacrylamide (PAA) was investigated by positron annihilation lifetime (PAL) spectroscopy and electric conductivity measurements. The samples were prepared by adding alcohols, such as ethanol (E), isopropyl alcohol (P), and butyl alcohol (B), and diols, such as ethanediol (E-1,E-2), isoproponendiol (P-1,P-2), and butanediol (B-1,B-2, B-1,B-3, B-1,B-4). The o-Ps lifetime values (tau(3)) of PMMA-alcohol or PMMA-diol composites are shorter than the tau(3) value of the virgin PMMA, whereas the tau(3) values of PAA-alcohol or PPA-diol composites fluctuate above and blow the corresponding value of virgin PAA. On the other hand, a significant increased was observed in the o-Ps intensities (I-3) of both PMMA and PAA composites with added alcohols and diols compared with pure PMMA and PAA. The electric conductivity (sigma) also increased for both PMMA and PAA composites with added alcohols and diols compared with the virgin PMMA or PAA polymer. A correlation was found between positron annihilation lifetime parameters and electric conductivity of PAA composites. (C) 2003 Wiley Periodicals, Inc. [References: 14]
机译：通过正电子ni没寿命（PAL）光谱和电导率测量研究了醇和二醇对聚甲基丙烯酸甲酯（PMMA）和聚丙烯酰胺（PAA）的影响之间的比较。通过添加醇（例如乙醇（E），异丙醇（P）和丁醇（B））和二醇（例如乙二醇（E-1，E-2），异丙基二醇（P-1， P-2）和丁二醇（B-1，B-2，B-1，B-3，B-1，B-4）。 PMMA醇或PMMA-二醇复合物的o-Ps寿命值（tau（3））短于纯PMMA的tau（3）值，而PAA-醇或PPA-二醇的tau（3）值复合材料在上方波动并吹走相应的原始PAA值。另一方面，与纯PMMA和PAA相比，添加了醇和二醇的PMMA和PAA复合材料的o-Ps强度（I-3）明显增加。与原始的PMMA或PAA聚合物相比，添加了醇和二醇的PMMA和PAA复合材料的电导率（sigma）也都有提高。发现正电子an灭寿命参数与PAA复合材料的电导率之间存在相关性。 （C）2003 Wiley Periodicals，Inc. [参考：14]

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