1438 Corrections
Macromolecules, Vol. 31, No. 4, 1998
India, and the Regional Research Laboratory, Trivandrum, India, for financial support. This is Document No. RRLT-PRU-89 from the Photochemistry Research Unit.
(10) (a) Wang, J.-S.; Matyjaszewski, K. J. Am. Chem. Soc. 1995, 117, 5614. (b) Matyjaszewski, K.; Gaynor, S.; Wang, J.-S. Macromolecules 1995, 28, 2093. (11) (a) Otsu, T.; Yoshida, M. Makromol. Chem., Rapid Commun. 1982, 3, 127. (b) Otsu, T.; Yamashita, K.; Tsuda, K. Macromolecules 1986, 19, 287. (c) Otsu, T.; Matsunaga, T.; Kuriyama, A.; Yoshioka, M. Eur. Polym. J. 1989, 25, 643. (12) Francis, R.; Ajayaghosh, A. Polymer 1995, 36, 1091. (13) (a) Barton, D. H. R.; George, M. V.; Tomoeda, M. J. Chem. Soc. 1962, 1967. (b) Ajayaghosh, A.; Das, S.; George, M. V. J. Polym. Sci., A: Polym. Chem. 1993, 31, 653. (14) (a) Lambrinos, P.; Tardi, M.; Polton, A.; Sig Walt, P. Eur. Polym. J. 1990, 26, 1125. (b) Kerckhoven, C. V.; den Broeck, H. V.; Smets, G.; Huybrechts, J. Makromol. Chem. 1991, 192, 101. (c) Nakayama, Y.; Matsuda, T. Macromolecules 1996, 29, 8622. (15) Delduc, P.; Tailhan, C.; Zard, S. Z. J. Chem. Soc., Chem. Commun. 1988, 308.
References and Notes (1) Frechet, J. M. J. Science 1994, 263, 1710. (2) Soyali, D. Y.; Hertler, W. R.; Webster, O. W.; Cohen, G. M. Macromolecules 1987, 20, 1473. (3) Quirk, R. P.; Lynch, T. Macromolecules 1993, 26, 1206. (4) Gorman, C. B.; Ginsburg, E. J.; Grubbs, R. H. J. Am. Chem. Soc. 1993, 115, 1397. (5) Webster, O. Science 1991, 251, 887. (6) Kristina, J.; Moad, G.; Rizzardo, E.; Winzor, C. L.; Berge, C. T.; Fryd, M. Macromolecules 1995, 28, 5381. (7) (a) Rizzardo, E. Chem. Aust. 1987, 54, 32. (b) Johnson, C. H. L.; Moad, G.; Solomon, D. H.; Spurling, T.; Vearing, D. J. Aust. J. Chem. 1990, 43, 1215. (8) Georges, M. K.; Veregin, R. P. N.; Kazmaier, P. M.; Hamer, G. K. Macromolecules 1993, 26, 2987. (9) Hawker, C. J. J. Am. Chem. Soc. 1994, 116, 11185.
MA971166W
CORRECTIONS
D. H. Gracias and G. A. Somorjai*: Continuum Force Microscopy Study of the Elastic Modulus, Hardness and Friction of Polyethylene and Polypropylene Surfaces. Volume 31, Number 3, February 24, 1998, p 1269-1276. Published on the Web January 28, 1998. Equation 13 is a repetition of eq 11. The correct eq 13 is
[
F ) τA ) τ
3π3/2R (W + 3πRγ + 4E*
x6πRγW + (3πRγ)2) MA981981R Published on Web 02/07/1998
]
2/3
(13)
