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Description Phase diagram of PNIPAM/DMF solution. The inset shows the OM image of the 4 wt% solution at 2 °C, exhibiting the thermally induced phase‐separated structures. The binodal temperature was determined...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Concentration dependence of zero‐shear viscosity (left axis) and relaxation time (right axis) for PNIPAM/DMF solutions. The thin arrow indicates the entanglement concentration φe of 7 wt%. The...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Dynamic rheological properties of PNIPAM/DMF solutions with different concentrations: a) dynamic storage modulus G′ and b) dynamic loss modulus G″ as a function of applied frequency ω.
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description a) OM images of the 7 wt% jet collected in the toluene nonsolvent reservoir to freeze the internal structures developed in the jet due to extension‐induced phase separation. The dotted rectangular...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Comparison of the average extension rate of the jet with the intrinsic relaxation rate of PNIPAM solutions with different concentrations.
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Equatorial intensity profiles IVV(q) versus the magnitude of the scattering vector q at the straight jet end for PNIPAM/DMF solutions with different concentrations. The position of first‐order...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description SEM images of PNIPAM fiber morphology electrospun from solutions with different concentrations. Processing at Q = 0.5 mL h−1 and tip‐to‐collector distance of 14 cm. The applied voltage is 6 kV for...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description AFM images of PNIPAM fiber electrospun from the 14 wt% solution. a,b) Phase scan. The red box in (a) is enlarged to show in (b). String‐like structures are identified to orient parallel to the...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Morphologies of PNIPAM fibers electrospun from the 4 wt% solution, a) SEM image, and b–e) TEM images. In (b), strings exit within the nanofibers, as pointing out by the arrows. In (c), the left...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Morphologies of PNIPAM fibers electrospun from the 1 wt% solution, a) SEM image, b–d) TEM images.
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description a) Light‐scattering setup used to obtain the equatorial intensity profile IVV (azimuthal angle μ = 90°) of the straight jet along the spinning line. Two step motors are used to precisely position...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering -
Description Concentration effects on the cone height Hc, straight jet length Lj, straight jet‐end diameter dj,e, straight jet‐end velocity vj,e, average extension rate of the whole straight jet ε˙av, and...
Article Title: Rheological Aspects and Extension‐Induced Phase Separation in Electrospinning of Poly(N‐isopropyl acrylamide) Solutions in Dimethylformamide
Publication Title: Macromolecular Materials and Engineering