Formation of Polyamide Nanofibers by Directional Crystallization in Aqueous Solution | Zendy

Demirel A. Levent | Zendy; Meyer Matthias | Zendy; Schlaad Helmut | Zendy

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Formation of Polyamide Nanofibers by Directional Crystallization in Aqueous Solution

Author(s) -

Demirel A. Levent,

Meyer Matthias,

Schlaad Helmut

Publication year - 2007

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200703486

Subject(s) - crystallization , aqueous solution , materials science , chemical engineering , nanofiber , annealing (glass) , polymer , polymer chemistry , composite material , chemistry , organic chemistry , engineering

Great balls of fiber! Annealing of a dilute aqueous solution of poly(2‐isopropyl‐2‐oxazoline) above its cloud point leads to the formation of a coagulate in the form of crystalline nanofibers (see microscopy image). Directional crystallization, which occurs below the glass transition temperature of the polymer at 65 °C, is driven by hydrophobic and dipolar interactions in combination with a solvation effect.

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