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Journal of Macromolecular Science, Part A
Pure and Applied Chemistry
Volume 44, 2007 - Issue 12
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Original Articles

Influence of pH and Salt on the Photocrosslinking in Polyelectrolyte Thymine‐Containing Films

Sofia Trakhtenberg Center for Green Chemistry and Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA
,
Ramya Kumar Center for Green Chemistry and Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA
,
Jason Bianchini Center for Green Chemistry and Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA
,
Savin Thor Center for Green Chemistry and Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA
,
Debora M. Martino Center for Green Chemistry and Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA
&
John C. Warner Center for Green Chemistry and Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MACorrespondence[email protected]
Pages 1311-1315 | Published online: 11 Feb 2013
 
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Photocrosslinking of thymine‐based water‐soluble polymer films was investigated at varying preparation conditions. Adding salt or decreasing the pH of the solution from which the films were cast resulted in the decreased efficiency of photoimmobilization, while increasing the pH was found to increase the photoimmobilization efficiency. A mechanistic rationale for the observed effects is proposed.

5 Acknowledgements

The authors would like to thank SAPPI Ltd., NSF, and ACS SEED program for generous financial support and Dr. Roger A. Boggs for assistance in preparing the manuscript. This material is based upon work supported by the National Science Foundation under Grant No. 0556272.

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