Relation between the adhesion strength and interfacial width for symmetric polystyrene bilayers
Version of Record online: 7 NOV 2006
Copyright © 2006 Wiley Periodicals, Inc.
Journal of Polymer Science Part B: Polymer Physics
Special Issue: The American Physical Society Division of Polymer Physics Special Issue
Volume 44, Issue 24, pages 3598–3604, 15 December 2006
How to Cite
Akabori, K.-I., Baba, D., Koguchi, K., Tanaka, K. and Nagamura, T. (2006), Relation between the adhesion strength and interfacial width for symmetric polystyrene bilayers. J. Polym. Sci. B Polym. Phys., 44: 3598–3604. doi: 10.1002/polb.21020
- Issue online: 7 NOV 2006
- Version of Record online: 7 NOV 2006
- Manuscript Accepted: 12 SEP 2006
- Manuscript Revised: 9 SEP 2006
- Manuscript Received: 9 JUN 2006
- New Energy and Industrial Technology Development Organization of Japan
- Ministry of Education, Culture, Sports, Science, and Technology, Japan. Grant Number: A 18685014
REFERENCES AND NOTES
- 1Polymer Interfaces: Structure and Strength; Hanser: New York, 1995.
- 2Adhesion of Polymers; McGraw-Hill: New York, 2002.;
- 6(a) Macromolecules 1997, 30, 3708–3710;Macromolecules 1998, 31, 6620–6626;J Polym Sci Part B: Polym Phys 1998, 36, 567–572.;
- 13We also performed the lap-shear test for bilayers composed of 50-nm-thick PS films under the same conditions. Then, the GL value was smaller than that for bilayers composed of 200-nm-thick PS films. This was probably because the mechanical properties in the ultrathin films differed from those in the corresponding thicker ones.
- 14The Theory of Polymer Dynamics; Clarendon: Oxford, 1986.;
- 15We previously examined the annealing-time dependence of the interfacial width for bilayers of PS and dPS (see ref. 10) at the same temperature and with the same molecular weight but without pressure. According to the data, the interfacial width for the largest Mn sample should reach a constant at 365 K and 5.4 × 105 s. To confirm whether this was the case even with the pressure, we performed a new experiment. Then, we found that the assumption was true. This was also advocated when we took into account the diffusion coefficient of PS under the conditions (see ref. 10), although we are not still sure about the pressure effect on the number. However, when the annealing time was shorter than 1 × 105 s, the interfacial width did not reach a constant.
- 18We have performed a quantitative analysis for the relation of the macroscopic area of interfacial failure (Af) to the tadh value, molecular weight, and chain-end chemistry. As a result, the Af value slightly increases with increasing tadh, as expressed by Af/A ∼ tadh0.21±0.04. Interestingly, using the data from various tadh values, molecular weights, and chain ends, we have obtained a master line for the relation between Af and GL.