以電紡絲製備poly(4-methyl-1-pentene)(PMP)纖維，並以cyclohexane/methyl ethyl ketone為共溶劑，由於在電紡PMP溶液過程中會產生阻塞現象，故以同軸雙管進行電紡絲，內管溶液為PMP溶液，外管溶液為後cyclohexane溶劑，電紡PMP溶液為一連續製程。PMP溶液的entanglement濃度為6.0 wt%，高於此濃度可得均勻的PMP纖維。此外，亦探討溶液黏度對於Taylor cone高、液柱長度、液柱直徑(dj)及纖維直徑(df)的影響，並以液柱直徑與纖維直徑對溶液黏度(o)做全對數圖可得scaling law關係：dj~o0.06與df~o0.4。

Electrospun poly(4-methyl-1-pentene) (PMP) fibers are prepared from cyclohexane/methyl ethyl ketone-based co-solvent. Nevertheless, rapid clogging of PMP solutions during electrospinning is observed. In order to prevent this clogging phenomenon the co-axial electrospinning system is used. Cyclohexane is introduced as shell fluid and the PMP solution is placed as core fluid. The result is that electrospinning of PMP solutions can be carried out continuously. The entanglement concentration for PMP solutions is 6wt% and using this concentration for electrospinning uniform PMP fibers can be obtained. Moreover, the solution viscosity effects on the cone height, jet length, jet diameter (dj), and fiber diameter (df) are observed, too. The double-logarithmic plots of the dj and df versus zero shear viscosity (ηo) reveal two scaling laws existed for the present solutions, i.e., dj~ηo0.06 and df~ηo0.4.

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