| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 177857 | Dyes and Pigments | 2008 | 5 Pages |
Abstract
A general method to prepare near infrared absorbing abietic acid derivatives is described in which the carboxylic acid of abietic acid is sterically hindered, making the seemingly simple esterification of the acid with a functional near infrared dye the most troublesome stage of the synthesis. Optimum results were obtained by constructing the chromophore from components previously attached to abietic acid. The spectral properties of the desired compound both in solution and within polymer films are discussed. The tackifiers increase the near infrared absorption, offering the potential for near infrared-activated hot-melt adhesives.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Kenneth C.W. Chong, Mitchell A. Winnik, Lie-zhong Gong, James Nowicki,