ISSN:
0323-7648
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The synthesis and the optical properties of the novel polymer polyphenothiazinobisthiazole (PPT) are described. The design of this polymer was planned taking into consideration several aspects that were anticipated to lead to a material with an enhanced nonlinear optical susceptibility (χ(3)). Monomer 16 was prepared in a five-step synthsis starting from N-dodecyl-3,7-diaminophenothiazin (11). 16 was reacted with terephthaloyl chloride to yield the precursor polyamide 17. This precursor polyamide was subjected to a thermal cyclization at 300°C under vacuum leading to the title polymer PPT (18). PPT shows UV/vis absorption maxima at λ=282 nm, 305 nm and 463 nm. The macroscopic nonlinear optical susceptibility χ(3)(-3ω;ω,ω,ω,) of a thin film of PPT was determined with a third harmonic generation (THG) technique at a fundamental laser wavelength λL=1064 nm. The results show that PPT exhibits nonlinear optical properties comparable to those of poly-p-phenylenevinylene (PPV).
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/actp.1994.010450314
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