亂排聚苯乙烯(atactic polystyrene)溶在鄰二氯苯(o-dichlorobenzene)時外觀會呈現白色混濁樣，一開始分不清楚這樣的外觀是屬於相分離還是膠化，當溶液進行加熱後會由白色混濁逐漸轉變成澄清透明，但加熱後放置於室溫其溶液外觀漸漸由澄清又轉變回混濁，確定白色混濁外觀不是aPS未溶乾淨所造成。
不同濃度溶液取樣滴於凹潮玻片並在充滿氮氣之Hot stage下進行升降溫觀察發現所有濃度在75 oC時完全沒有結構，不同濃度均以60 oC/min降溫至特定溫度時會產生樹枝狀結構，而發現其樹枝狀結構產生溫度隨濃度上升而提高。
aPS/o-DCB相圖為UCST，本實驗所選用之aPS分子量為3x105 g/ mol，經由計算可得c約為2 wt%，而實驗中最低濃度7 wt%應屬於相圖的右半部，但相圖中右半部為隨濃度變高，其相分離溫度越低，另外相分離結構為了使表面能較低，其結構多為雙連續或是顆粒狀，所以降溫後所產生之結構應屬於膠化，並不是相分離。
利用高溫電紡絲裝置電紡高分子溶液，來比較有無結構之影響，並觀察Cone、 Jet、纖維形態，經由比較後發現，其結構對電紡絲影響不大。
利用乾玻片和滴有nonsolvent的silicone rubber spacer收集液柱發現，乾玻片會有半透明的液柱坍塌，而滴有nonsolvent的silicone rubber spacer可以將液柱內的結構凍住，利用SEM可以觀察到其內部經電紡拉伸而相分離的string結構。

aPS/o-DCB solution belongs to UCST.Thec of our experiment is 2 wt%, the concentration of the experiment was larger than c. In the case of phase separation, the right side of the UCST is the phase separation temperature decreases with increasing concentration. However, the experimental results were that the temperature of the structure increased with increasing concentration, so the structure should belong to gel.

Using high temperature electrospinning aPS/o-DCB to compare the effects of gel, by observing cone, jet and fiber type, it was found that gel had little effect on electrospinning.

The internal structure of the liquid jet can be frozen by using a nonsolvent(methanol) silicon rubber spacer. The structure of the string separated by electrospinning due to the internal structure can be observed by SEM.

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