本研究以水為溶劑在低於相分離溫度下配製10 wt% PNIPAM水溶液，在相同操作條件下改變溶液溫度5、10、23、24、25、30 ℃進行電紡，探討溶液溫度對電紡液柱與纖維的影響。

以氦-氖雷射光打擊10 wt% PNIPAM水溶液在Tsolution =10 ℃下的電紡液柱，沿赤道方向掃描距針底(z=0)不同距離處所得散射圖案，得到光強度分布圖，液柱離針底愈遠，得到的第一亮峰位置 (qm1)逐漸往高q處移動，由關係式dj=/qm1可得知液柱直徑逐漸縮小。

使用乾玻片收集中段的電紡液柱，在OM下觀察大多呈現平滑或鋸齒狀的坍塌液柱，其中25與30 ℃皆收集到具有裂縫的液柱，也出現表面顆粒在POM下會發亮的結構。另以裝有water/DMF co-nonsolvent的silicone rubber spacer玻片收集10 ℃的電紡液柱，在POM下觀察到線狀的發亮結構。

觀察10 wt%的PNIPAM水溶液的電紡纖維，當溫度低於23 ℃時，電紡纖維較均一；當高於24 ℃時，纖維有大面積的沾黏。

In aqueous solutions, PNIPAM has a lower critical solution temperature near the room temperature. The solution is phase-separated at the temperatures above the phase separation temperature. In this study, deionized water was used as a solvent to prepare poly(N-isopropyl acrylamide) solution, and the solution was electrospun for a concentration of 10 wt.%.
He-Ne laser showed on the electrospinning jet of 10 wt.% solution, and the scattering pattern, which is at different distances from the bottom of the needle (z=0) on the screen behind the jet, were scanned along the equator direction to obtain the intensity profile. From the profile, the magnitude of the scattering vector of the first intensity maximum (qm1) was determined. We could infer the tendency of the change of jet diameter by dj(z)=/qm1.
Using two kinds of slide: normal slide and silicone rubber spacer containing co-nonsolvent, were used to collect the middle section of the liquid jet. In OM observation, liquid jet was divided into several structures, and microstructure was kept in when the jet fell into the co-nonsolvent, which is similar to non-solvent-induced phase separation.
The electrospinning 10 wt.% solution product was observed by SEM and TEM. It was found that the higher solution temperature could not obtain uniform fiber, and the ribbons were the common products for any solution temperature.

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