ADHESIVE AND ANTICORROSIVE POLYMERIC COATINGS OBTAINED FROM POLYBENZAZOLES (PBI and PBO)

Year 2007, Volume: 2 Issue: 2, 188 - 196, 01.12.2007

İlkay Özaytekin

Abstract

Abstract: In this study, polybenzimidazole and polybenzoxazole having high molecular weights were prepared with 3,3'-diaminobenzidine, 1,2,4,5-tetraaminobenzene or 3,3'-dihydroxybenzidine and various dihydroxamoyl chloride. The characterization of polymers was performed with the assistance of the analyses of inherent viscosity, FT-IR and the elemental analysis. Moreover, the adhesion properties and the resistance properties against corrosion were examined for the synthesized polymers. The effects upon adhesion and anticorrosion properties of polymers due to the presence of terminal functional groups (CCl=NOH, NH2) or the functional groups of main chain (-C=N-, -C=NH-, -C-O-, -S-S-, -O-) bonded to the structure of the polybenzazoles were determined.
Key words: Polybenzoxazole, Polybenzimidazole, Coating.
POLİBENZAZOLLERDEN ELDE EDİLEN ADHESİF VE ANTİKORROZİF KAPLAMALAR (PBI ve PBO)
Özet: Bu çalışmada yüksek molekül ağırlığına sahip polibenzimidazol ve polibenzoksazoller 3,3'-diaminobenzidin, 1,2,4,5-tetraaminobenzen veya 3,3'-dihidroksibenzidin ile çeşitli dihidroksamoil klorur bilesiklerinden sentezlendi. Polimerlerin karakterizasyonu, logaritmik viskozite sayısı, elemental analiz ve FT-IR analizleri ile belirlendi. Bununla birlikte sentezlenen polimerlerin adhezyon özellikleri ve korozyona karşı dayanıklılık özellikleri incelendi. Polimerlerin adhezyon ve antikorozyon özelliklerine, polibenzazollerin yapısında bulunan asıl zincirdeki fonksiyonel grupların (-C=N-, -C=NH-, -C-O-, -S-S-, -O-) veya polimerin uc fonksiyonel gruplarının (CCl=NOH, NH2) etkileri belirlendi.
Anahtar kelimeler: Polibenzoksazol, Polibenzimidazol, Kaplama

Keywords

Polibenzoksazol, Polibenzimidazol, Kaplama

References

• AHMETLI G, ŞEN N, PEHLIVAN E, DURAK S, 2006. Adhesive and Anticorrosive Polymeric Coatings Obtained From Modified Industrial waste Oligostyrenes, Progress in Organic Coatings, 55, 262-267.
• CARRON KT, LEWIS ML, DONG J, DING J , XUE Gand CHEN Y, 1993. Surface enhanced Raman scattering and cyclic voltammetry studies of synergetic effects in the corrosion inhibition of copper by polybenzimidazole and mercaptobenzimidazole at high temperature, Journal of Materials Science, 28(15), 4099-4103.
• DAVID EG, 1996. Encapsulated Ferromagnetic Particles Suitable for High Temperature Use, US Patent 5563001, General Motors Corporation, 8 October.
• FRIEDRICH JF, MIX R, KÜHN G, 2005. Adhesion of Metals To Plasma-Induced Functional Groups At Polymer Surfaces, Surface and Coatings Technology, 200 (1-4), 565-568.
• GAJIWALA HM, ZAND R, 2000. Synthesis And Characterization of Thermally Stable Polymers Containing Phenazine, Polymer, 41, 2009-2015.
• IMAI Y, TAOKA, I, UNO K, IWAKURA Y, 1965. Polybenzoxazoles and Polybenzthiazoles, Macromolecul Chemistry, 83, 167-179.
• IURA K, ONISHI Y, ITOH T, 1996. Varnish-Coated Heat-Resistant Roll for Copying Machine, and Method of Producing The Same, US Patent 5,549,946, Sumitomo Wiring Systems, Ltd. August 27.
• IZYNEEV AA, TEPLYAKOV MM, SAMSONOVA VG, MAKSIMOV AD, 1967. Polyazoles, Russian Chemical Review, 36, 912-932.
• KARATAŞ İ, TÜZÜN C, 1989. Terephthalohydroximoyl Chloride, Organic Preparations and Procedures International, 21, 517.
• KIM JH, LEE JK, 2001. Hydroxy-Substituted Polyenaminonitrile asa Soluble Precursor for Rigid-Rod Polybenzoxazole, Bulletin of the Korean Chemical Society, 22, 999-1004.
• KIM YJ, 2005. Synthesis of High Molecular Weight Polybenzoxazoles in Polyphosphoric Acid and Investigation of Their Hydrolytic Stability Under Acidic Conditions, Hıgh Performance Polymers, 17, 377-401.
• KORSHAK VV, KAZAKOVA GV, RUSANOV AL, 1989. Catalytıc Methods of Synthesızıng Polybenzazoles Review, Polymer Scıence. U.S.S.R., 1, 4-21.
• KORSHAK VV, KRONGAUZ YS, RUSANOV AL, TRAVNIKOVA AP, 1974. Polybenzoxazoles and Benzthiazoles Containing 2-Benzimidazolyl Side Groups, Vyskomol Soedin, A16, 9, 1996-2001.
• KORSHAK VV, TEPLYAKOV MM, 1971. Synthesis Methods and Properties of Polyazoles, Journal of Macromolecular Science - Reviews; Macromolecular Chemistry, C5(2), 409-450.
• KUBOTA T, NAKANISHI R, 1964. Preparation of Fully Aromatic Polybenzoxazoles, Journal of Polymer Science Part:B, 2, 655-659.
• MOYER WW, COLE C, ANYOS TJ, 1965. Aromatic Polybenzoxazoles, Polymer Science Part: A3, 2107-2121.
• RHEINBOLD H, 1926. Über die Reactionsweiser des Nitrosyl Chlorids, Liebigs Annalen Chemistry, 451, 161.
• SUGAMA T, 2004. Hydrothermal Degradation of Polybenzimidazole Coating, Materials Letters, 58, 1307-1312.
• UEDA M, SUGITA H, SATO MJ, 1986. Synthesis of Poly(benzoxazole)s by Direct Polycondensation of Dicarboxylic Acids With 3,3'-Dihydroxybenzidine Dihydrochloride Using Phosphorus Pentoxide/Methanesulfonic Acid As Condensing Agent and Solvent, Polymer Science Part: A, Polymer Chemistry, 24, 1019-1026.
• VOGEL H, MARVEL CS, 1961. Polybenzimidazoles; New Thermally Stable Polymer, Journal of Polymer Science, L, 511-539.
• VOGEL H, MARVEL CS, 1963. Polybenzimidazoles. II., Journal of Polymer Science Part A, 1, 1531-1541.
• WOLFE JF, ARNOLD FE, 1981. Rigid-Rod Polymers. 1. Synthesis And Thermal Properties of para-Aromatic Polymers With 2,6-Benzobisoxazole Units In The Main Chain, Macromolecules, 14, 909-915.
• WRASIDLO W, LEVINE HH, 1964. Polybenzimidazoles. I. Reaction Mechanism and Kinetics, Journal of Polymer Science Part A, 2, 4795-4808.