Interaction of smectites with organic photochromic compounds

1990 ◽  
Vol 9 (1) ◽  
pp. 63-83 ◽  
Author(s):  
J. M. Adams ◽  
A. J. Gabbutt
Keyword(s):  
Photochromic Compounds ◽  
Organic Photochromic Compounds

Thermally irreversible organic photochromic compounds for optical memory

2007 ◽  
Vol 20 (11) ◽  
pp. 1007-1020 ◽  
Author(s):  
V. A. Barachevsky ◽  
Yu. P. Strokach ◽  
Yu. A. Puankov ◽  
M. M. Krayushkin
Keyword(s):  
Optical Memory ◽  
Photochromic Compounds ◽  
Organic Photochromic Compounds

Colorimetric Detection of Nitroaromatics Using Organic Photochromic Compounds

2015 ◽  
Vol 68 (11) ◽  
pp. 1723 ◽  
Author(s):  
George Vamvounis ◽  
Nicholas Sandery
Keyword(s):  
False Positive ◽  
Colorimetric Detection ◽  
Excitation Wavelength ◽  
Photochromic Compound ◽  
Visible Absorption ◽  
Photochromic Compounds ◽  
Nitroaromatic Explosive ◽  
Volmer Constant ◽  
Potential False Positive ◽  
Organic Photochromic Compounds

An organic photochromic compound is explored as a new portable colorimetric sensor for nitroaromatics. This photochromic compound switches from colourless to pink upon exposure to ultraviolet light. In the presence of nitroaromatic explosive derivatives the photoswitching behaviour of the dithienylethene is suppressed, while a potential false positive (toluene) has little effect. The degree of photoswitching inhibition was determined by comparing the integrated visible absorption with the concentration of the analyte to give the pseudo Stern–Volmer constant (KPSV). The KPSVs measured varied from 12900 (p-nitrotoluene) to 236 M–1 (toluene), which were directly related to the analyte absorption at the excitation wavelength.

An effective approach to fabricate high strength polyurethane hydrogels with reversible photochromic performance as a photoswitch

2021 ◽  
Author(s):  
Guangyao Li ◽  
Zhicheng Pan ◽  
Zhanyu Jia ◽  
Juan Wang ◽  
Jianlong Wang ◽  
...  
Keyword(s):  
High Sensitivity ◽  
High Strength ◽  
Optical Devices ◽  
Photochromic Compounds ◽  
Potential Applications ◽  
Organic Photochromic Compounds

Photochromic hydrogels have attracted widespread attention because of their potential applications in optical devices. Spiropyran (SP) is one of the most investigated organic photochromic compounds, which have high sensitivity to...

New bistable organic photochromic compounds for bitwise working optical memory

2007 ◽  
Vol 16 (2) ◽  
pp. 51-66 ◽  
Author(s):  
V. A. Barachevsky ◽  
Yu. P. Strokach ◽  
T. M. Valova ◽  
Yu. A. Puankov ◽  
M. M. Krayushkin
Keyword(s):  
Optical Memory ◽  
Photochromic Compounds ◽  
Organic Photochromic Compounds

Dealkylation of N-substituted indolinospironaphthoxazine photochromic compounds under UV irradiation

1994 ◽  
Vol 83 (2) ◽  
pp. 147-151 ◽  
Author(s):  
G. Baillet ◽  
M. Campredon ◽  
R. Guglielmetti ◽  
G. Giusti ◽  
C. Aubert
Keyword(s):  
Uv Irradiation ◽  
Photochromic Compounds

NEW ACIDO- AND PHOTOSWITCHABLE CHROMOPHORES FOR SECOND-ORDER NONLINEAR OPTICS

2004 ◽  
Vol 13 (03n04) ◽  
pp. 423-426 ◽  
Author(s):  
L. SANGUINET ◽  
S. AHMED ◽  
J. L. POZZO ◽  
V. RODRIGUEZ ◽  
F. ADAMIETZ
Keyword(s):  
Optical Properties ◽  
Nonlinear Optics ◽  
Nonlinear Optical ◽  
Rayleigh Scattering ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Photochromic Compounds ◽  
The Way

New acidochromic and photochromic compounds with nonlinear optical properties have been designed and synthesized. The hyperpolarizabilities of the zwitterionic colored forms have been quantified with polarized hyper-Rayleigh scattering experiments. The static value of oxazolidino-indoline 2 is found to be as high as Disperse Red One. This opens the way to novel multi-addressable NLO-systems.

Sign in / Sign up

Export Citation Format

Share Document