本實驗將三種不同分子量的PMMA，以固定壓力，不同含浸溫度含浸後再以不同溫度進行發泡，可以得到奈米泡孔結構，我們將其結果製表。得到類似於下限臨界溶解溫度(lower critical solution temperature, LCST)的相圖，本實驗發現除了發泡參數等等會影響發泡結果，更有機會利用調配PMMA的分子量不必以極端的含浸溫度去製備奈米泡材。
另外，本實驗也嘗試將固態物理發泡法改以大型發泡槽含浸，並且進行放大式的製程。結果顯示，除非克服熱傳以及發泡中樣品內部應力不均衡的問題，樣品勢必發生變形乃至於破裂的情形，並且難以製備出完整的奈米泡材。目前最有可能的作法是限制其發泡空間的手法，但會仍然會有影響發泡結果的問題在，可以藉由此方向再進行研究。

In this experiment, three PMMA with different molecular weights were saturated and foaming using different temperatures. Nanocellular foam was obtained. It was found that molecular weight is one of the critical factors that affects the foam structure.
In addition, bulk sized nanocellular foam was created. The results show that unless the heat transfer and internal stresses issues could be resolved, samples would deform or even rupture. Another possible way of generating nanocellular structure is by confining the sample in cage. A flat and foamed PMMA sample was obtained.

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