ISSN:
0360-6376
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Photocrosslinkable polyesters of m- and p-phenylenebis(α-cyanoacrylic acids) (I-a and I-b), m- and p-phenylenebis(α-cyanobutadiene carboxylic acids) (I-d and I-e), p-phenylenebis(acrylic acid) (I-c), and p-phenylenebis(butadiene carboxylic acid) (I-f) were prepared, and their photosensitivities were investigated. The spectral sensitivities of I-a, I-c, I-d, and I-e ranged up to 365, 385, 510, and 560 nm, respectively. This order corresponds to that of λmax due to the π-π* transition in their absorption spectra. I-e was sensitive to the visible part of argon ion laser even in the absence of photosensitizer. The highest sensitivity observed with I-e was estimated to be 1.5 mJ/cm2. In contrast, the sensitivity of I-c was low (〉 105 mJ/cm2) and that of I′-d, a modified I-d, was 1300 mJ/cm2, respectively. Addition of 2,6-di(4′-methoxyphenyl)-4-(4′-n-amyloxyphenyl)thiapyrylium perchlorate to them extended their sensitivity range, improving their sensitivity values to 35 and 110 mJ/cm2, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1985.170230903
Permalink
