本篇進行濕度對多壁奈米碳管/聚乙烯醇複合材的影響之研究，並由Variable-Range Hopping理論推知水氣的影響機制。
另外研究顯示在室溫下，在相對濕度升高到65.15%以上時，此複合材因為玻璃轉換溫度低於室溫而處於橡膠態。這一影響在其他以親水性高分子做為基材的奈米碳管中也很有可能發生。所以此一測試對於類似之複合材是必要的。
本論文建立另一種方法，可以量測不同溫度下玻璃轉換所需的濕度，這將有助於研究濕度對導電高分子複合材之影響。
關於本論文的編排，第一章為前言，第二章為文獻回顧，第三章為實驗步驟，第四章為實驗結果與討論，第五章為結論，最後則為參考文獻。

In this study, the effect of humidity on the conductive property of multi-walled carbon nanotubes / polyvinyl alcohol (MWCNT/PVA) composite have been investigated. According to variable-range hopping (VRH) conductive theory, the average hopping distance and hopping energy can be evaluated. The results may explain why the resistivity change with humidity.
Besides, we observed the glass transition temperature might shift under different relative humidity. Above relative humidity 65.15%, glass transition temperature may less than room temperature. This phenomena ought to occur within other water soluble polymer based CNT composite.
Moreover, we established a different method to measure the humidity that required for glass transition at different temperature.

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