Crossref journal-article
Wiley
Journal of Polymer Science Part B: Polymer Physics (311)
Abstract

AbstractUtilizing forward recoil spectrometry (FRES), we have determined the segregation isotherm which describes the interfacial excess zi* of diblock copolymers of poly (d8‐styrene‐b‐2‐vinylpyridine) (dPS‐PVP) at the interface between the homopolymers PS and PVP as a function of ϕ∞, the volume fraction of diblock copolymer remaining in the host homopolymer. All the samples were analyzed after annealing at temperatures and times sufficient to achieve equilibrium segregation. The effect of the degree of polymerization of both the diblock copolymers and the host homopolymers on the segregation isotherm is investigated. When the degree of polymerization of the homopolymer is much larger than that of the diblock copolymer, the normalized interfacial excess (zi*/Rg), where Rg is the radius of gyration of an isolated block copolymer chain, is a universal function of that portion of the block copolymer chemical potential due to chain stretching. The existence of such a universal function is predicted by theory and its form is in good agreement with self‐consistent mean field calculations. Using these results, one can predict important aspects of the block copolymer segregation (e.g., the saturation interfacial excess) without recourse to the time‐consuming numerical calculations. © 1994 John Wiley & Sons, Inc.

Bibliography

Dai, K. H., & Kramer, E. J. (1994). Molecular weight dependence of diblock copolymer segregation at a polymer/polymer interface. Journal of Polymer Science Part B: Polymer Physics, 32(11), 1943–1950. Portico.

Authors 2
  1. Kevin H. Dai (first)
  2. Edward J. Kramer (additional)
Dates
Type When
Created 22 years, 4 months ago (April 17, 2003, 12:01 p.m.)
Deposited 1 year, 9 months ago (Oct. 24, 2023, 12:55 p.m.)
Indexed 1 year, 1 month ago (July 9, 2024, 6 a.m.)
Issued 31 years ago (Aug. 1, 1994)
Published 31 years ago (Aug. 1, 1994)
Published Online 22 years, 5 months ago (March 11, 2003)
Published Print 31 years ago (Aug. 1, 1994)
Funders 0

None

@article{Dai_1994, title={Molecular weight dependence of diblock copolymer segregation at a polymer/polymer interface}, volume={32}, ISSN={1099-0488}, url={http://dx.doi.org/10.1002/polb.1994.090321111}, DOI={10.1002/polb.1994.090321111}, number={11}, journal={Journal of Polymer Science Part B: Polymer Physics}, publisher={Wiley}, author={Dai, Kevin H. and Kramer, Edward J.}, year={1994}, month=aug, pages={1943–1950} }