Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1991-06-25
1993-08-17
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 8206, 427163, 427164, 427 2, 436163, B05D 506
Patent
active
052366677
ABSTRACT:
A method of chemically modifying the poly (methyl methacrylate) (hereinafter "PMMA") clad surface of an optical fiber to introduce amino groups. N-butyl lithium in a suitable organic solvent with ethylene diamine is applied to the clad surface of the optical fiber in a substantially oxygen-free atmosphere, such as nitrogen, at approximately 10.degree. C. to 40.degree. C. for about one to two hours. A pH-sensitive dye with isothiocyanate functionality can be bounded to the modified clad surface resulting in a pH sensor based on fiber optics.
REFERENCES:
patent: 4050895 (1977-09-01), Hardy et al.
patent: 4200110 (1980-04-01), Peterson et al.
patent: 4240796 (1980-12-01), Nakanishi
patent: 4560248 (1985-12-01), Cramp et al.
patent: 4568518 (1986-02-01), Wolfbeis et al.
patent: 4803049 (1989-02-01), Hirschfeld et al.
patent: 4834496 (1989-05-01), Blyler, Jr. et al.
patent: 4859538 (1989-08-01), Ribi
patent: 4883338 (1989-11-01), Abe et al.
patent: 4886338 (1989-12-01), Yafuso et al.
patent: 4925268 (1990-05-01), Iyer et al.
patent: 5077078 (1991-12-01), Puschett et al.
Karandikar, B., J. Puschett, K. Matyiaszewshi Homogeneous and Heterogenous of Poly (Methyl Methacrylate) with Ethylene Diamine, Apr. 1989 pp. 250-241, "Polymer Preprints".
B. Karandikar et al., "Homogeneous and Heterogeneous Modification of Poly(MethylMethacrylate) with Ethylene Diamine," Polymer Preprints, vol. 30, No. 1 (Apr. 1989).
R. B. Merrifield, "Solid Phase Peptide Synthesis. I. The Synthesis of a Tetrapeptide," J. Amer. Chem. Soc., vol. 85, (Jul. 20, 1963), pp. 2149-2154.
P. Hodge & D. C. Sherrington, Eds., Polymer-supported Reactions in Organic Synthesis, John Wiley & Sons, New York (1980).
J. M. J. Frechet et al., "Polymeric Separation Media: Binding of .DELTA., .beta.-Unsaturated Carbonyl Compounds to Insoluble Resins through Michael Additions or Chelation of Derivatives," Pure & Appl. Chem., vol. 54, No. 11 (1982), pp. 2181-2188.
C. U. Pittman, Jr., & G. O. Evans, "Polymer-bound catalysts and reagents," ChemTech, (Sep., 1973), pp. 560-566.
L. Feistel et al., E. German Patent No. 212,258, issued Aug. 8, 1984, appearing in Chemical Abstracts, vol. 102 (1985).
K. Yang et al., "N-Butyllithium in Aminolysis and Ammonlysis of Esters," Tetrahedron Letters, No. 21, Pergamon Press, Great Britain, (1970), pp. 1791.1794.
D. T. Clark et al., "Applications of ESCA to Polymer Chemistry, XVII. Systematic Investigation of the Core Levels of Simple Homopolymers," Journal of Polymer Science; Polymer Chemistry Edition, John Wiley & Sons, Inc. vol. 16, (1978), pp. 791-820.
A. Akelah et al., "Synthesis and Chemical Modification of Poly (Methylmethacrylate) Resins," Polymer Preprints, vol. 27 (1), (1986), pp. 468-469.
V. M. Balakin, A. G. Tesler, V. S. Talankin, Vysokomol Soedin, Ser. B., 26 (5), "Synthesis and Study of the Complexing of New Nitrogen and Phosphorous Containing Polymers of Acrylate Type," appearing i Chemical Abstracts, vol. 101, (1984).
Karandikar Bhalchandra
Matyjaszewski Krzysztof
Puschett Jules B.
Housel James C.
Kikel Suzanne
Silverman Arnold B.
University of Pittsburgh
Wallenhorst Maureen M.
LandOfFree
Surface modification of plastic optical fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surface modification of plastic optical fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface modification of plastic optical fibers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2242233