Linear Dichroism in the Undergraduate Physical Chemistry Lab**

Authors

Donna L. Gosnell, Valdosta State University, Valdosta, GAFollow

Abstract

Stretched polymer films are used in the physical chemistry laboratory to introduce the general concept of anisotropy and the specific concept of transition dipole orientation. Polymer films are prepared and stretched to various degrees to achieve partially oriented systems. Some films are prepared with embedded smaller conjugated molecules for analysis. The technique of linear dichroism is used to analyze the stretched films to determine parameters such as the degree of orientation of the system and transition dipole vector directions of major absorbance peaks. The experimental results are compared to computational results obtained from the SPARTAN modeling program.

Acknowledgements

Valdosta State University Chemistry Department

Recommended Citation

Gosnell, Donna L. (2018) "Linear Dichroism in the Undergraduate Physical Chemistry Lab**," Georgia Journal of Science, Vol. 76, No. 1, Article 118.
Available at: https://digitalcommons.gaacademy.org/gjs/vol76/iss1/118