S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
Anisotropic rupture of polymer strips driven by Rayleigh instability
- Park, Jeong-yong; Suh, Kahp Y.; Seo, Soon-Min; Lee, Hong H.
- Issue Date
- American Institute of Physics
- J. Chem. Phys. 124, 214710 (2006)
- We demonstrate that the separated polymer strips of micro- and sub-micro-length-scales rupture anisotropically along the strip direction, resulting in the formation of distinctly observable, regularly spaced polymer drops. The wavelength of the polymer drops and the surface tension dependence of
the rupture behavior are found to be well represented by a relationship derived on the basis of Rayleigh instability. The period is proportional to the square root of the cross-sectional area of the strip and the proportionality constant depends on the contact angle. The rupture of polymer strips
into polymer blocks instead of drops, which result when annealed with physically confining walls in place, is found to be well described by the same relationship.