本實驗利用非共價的方式修改奈米碳管表面，利用非共價的方式具有不傷 害奈米碳管表面且製備上也來的容易許多。我們使用超分子修改奈米碳管 表面，此超分子為UPEO，UPEO的一端為尿嘧啶官能基，藉由非共價的方 式吸附在奈米碳管表面，而另一端為聚乙二醇，利用聚乙二醇親水的特性，
將表面被改質的奈米碳管順利的分散在去離子水中。利用熱重分析的流失 量、拉曼光譜的偏移、穿透式電子顯微鏡證實奈米碳管的表面成功地被
UPEO修改。
被修改的奈米碳管在30℃~100℃的溫度範圍下一小時，皆保持良好的穩定 度；此修改的奈米碳管不僅可以分散在水中，也可以分散在一些有機溶劑，
如:二甲基甲醯胺、二氯甲烷、氯仿等等；利用UPEO修改奈米碳管還擁有
PH回應的特性，具PH感測之應用潛力。將分散的奈米碳管導入聚甲基丙烯 酸甲酯中，所得的複材在熱性質上有提升的效果。
此外，我們將本實驗室所聚合的高分子，聚苯乙醯尿嘧啶(PVBU)來分散碳 管，在拉曼光譜中也可以證實，PVBU與奈米碳管具有作用力，成功修改奈 米碳管表面，改質的奈米碳管可以增加電極的電荷轉化。尿嘧啶和汞金屬 有專一性，在掃描式電子顯微鏡中，可以看出汞金屬與其他金屬在改質的 奈米碳管上的形貌有所不同。
75
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