Cover Picture

Cover Picture: Macromol. Theory Simul. 3/2006

  1. Mamdouh Al-Harthi,
  2. João B. P. Soares*,
  3. Leonardo C. Simon

Article first published online: 18 APR 2006

DOI: 10.1002/mats.200690004

Issue

Macromolecular Theory and Simulations

Macromolecular Theory and Simulations

Volume 15, Issue 3, page 185, April 12, 2006

Additional Information

How to Cite

Al-Harthi, M., Soares, J. B. P. and Simon, L. C. (2006), Cover Picture: Macromol. Theory Simul. 3/2006. Macromol. Theory Simul., 15: 185. doi: 10.1002/mats.200690004

Author Information

  1. Department of Chemical Engineering, University of Waterloo, 200 University Av. W., Waterloo, ON, N2L 3G1, Canada

*Department of Chemical Engineering, University of Waterloo, 200 University Av. W., Waterloo, ON, N2L 3G1, Canada.

Publication History

  1. Issue published online: 18 APR 2006
  2. Article first published online: 18 APR 2006

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

Get PDF (28K)

Cover: A mathematical model for atom-transfer radical polymerization with bifunctional initiators was developed. When compared to monofunctional initiators, bifunctional initiators not only produce polymers with higher molecular weight averages at higher polymerization rates, but also control their molecular weight distributions more effectively. The Figure shows how the equilibrium constant (Keq), the ratio of the activation (ka) to the deactivation (kd) rate constant, affects monomer conversion. By reducing Keq, the equilibrium is shifted towards the dormant chain side, decreasing monomer conversion. As a consequence, chain lengths also decrease but the control over the chain length distribution is improved and the polydispersity of the polymer decreases as shown in more details in the article by M. Al-Harthi, J. B. P. Soares,* and L. C. Simon on page 198.

Get PDF (28K)