Microphase separation in thin films of lamellar forming polydisperse di-block copolymers
نویسندگان
چکیده
منابع مشابه
Kinetic theory of microphase separation in block copolymers
A semiphenomenological theory that has the advantage of taking into account nonlinear and nonlocal contributions in the free energy for microphase separation of block copolymers is proposed. A kinetic nonlinear equation defining the process of structure formation from a melt is obtained, and its analytical solution at the melt-structure transition temperature is examined. In this region, the st...
متن کاملChemical Interactions and Their Role in the Microphase Separation of Block Copolymer Thin Films
The thermodynamics of self-assembling systems are discussed in terms of the chemical interactions and the intermolecular forces between species. It is clear that there are both theoretical and practical limitations on the dimensions and the structural regularity of these systems. These considerations are made with reference to the microphase separation that occurs in block copolymer (BCP) syste...
متن کاملChain elongation suppression of cyclic block copolymers in lamellar microphase-separated bulk.
Chain elongation suppression of cyclic block copolymers in microphase-separated bulk was determined quantitatively. Solvent-cast and annealed films are confirmed to show alternating lamellar structure and their microdomain spacing D increases with increasing total molecular weight M according to the relationship D proportional, variant M0.59, which agrees quite consistently with the theoretical...
متن کاملScaling Laws in Microphase Separation of Diblock Copolymers
In this note, we study a nonlocal variational problem modeling microphase separation of diblock copolymers ([22], [3], [21]). We apply certain new tools developed in [5] to determine the principal part of the asymptotic expansion of the minimum free energy. That is, we prove a scaling law for the minimum energy and confirm that it is attained by a simple periodic lamellar structure. A previous ...
متن کاملThin Films of Block Copolymers as Planar Optical Waveguides
– [1] F. Caruso, Colloids and Colloidal Assemblies, Wiley-VCH, Weinheim, Germany 2004. [2] W. Caseri, Macromol. Rapid Commun. 2000, 21, 705. [3] A. Bell, Science 2003, 299, 1688. [4] P. K. Mallick, Fiber-Reinforced Composites: Materials, Manufacturing, and Design, Dekker, New York 1993. [5] C. Murray, C. Kagan, M. Bawendi, Annu. Rev. Mater. Sci. 2000, 30, 545. [6] T. Trindade, P. O’Brien, N. L....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: RSC Advances
سال: 2015
ISSN: 2046-2069
DOI: 10.1039/c5ra00974j