Macromolecular Research, Vol.27, No.8, 756-763, August, 2019
The Synthesis of New Type II Polymeric Photoinitiator (thioxantone) via Atom Transfer Radical Polymerization and Their Curing and Migration Studies
E-mail:
Polymeric photoinitiators are widely used in ultraviolet (UV)-curable printing inks because of their low migration behavior. In this study, a new phenylphosphine oxide-polystyrene-thioxanthone (PPO-PSt-TX) polymeric photoinitiator was synthesized. Bis[(4-hydroxy)phenyl]phenyl phosphine oxide (BHPPO) that was synthesized by Grignard technique, was functionalized with 2-bromopropionyl bromide (atom transfer radical polymerization (ATRP) initiator) and then used in styrene polymerization. The bromine end-capped polystyrene was then reacted with 2-thioxanthone-thioacetic acid and final polymeric photoinitiator PPO-PSt-TX was obtained. Proton nuclear magnetic resonance (1H NMR), attenuated total reflectance- Fourier transform infrared spectroscopy (ATR-FTIR), gel permeation chromatography (GPC) and ultraviolet-visible spectroscopy (UV-Vis) confirmed the obtained structure. The curing characteristic of PPO-PSt-TX was compared with a standard flexographic printing varnish formulation containing thioxanthone (TX). The photopolymerization kinetics were determined by photo differential scanning calorimetry (Photo-DSC). The conversion of methylmethacrylate polymerization by using macrophotoinitiator is 78%. The migration behavior of PPO-PSt-TX was identified with liquid chromatography-mass spectrometry (LC-MS). It was shown that PPOPSt- TX macro photoinitiator is suitable for flexographic varnish and the migration level of photoinitiator is reduced by using polymeric photoinitiator.
- Dietliker K, Chemistry & Technology of UV & EB Formulation for Coatings, Inks & Paints, SITA Technology Ltd., London, 1991.
- Mishra MK, Yagci Y, Handbook of Radical Vinyl Polymerization, Marcel Dekker Inc., New York, 1998.
- Pappas SP, UV Curing Science and Technolgy, Technology Marketing Corp., Norwalk, 1978.
- Fouassier JP, Photoinitiation, Photopolymerization and Photocuring, Hanser Verlag, Munich, 1995.
- Davidson RS, Exploring the Science, Technology and Applications of UV and EB Curing, SITA Technology Ltd., London, 1999.
- Jiang XS, Yin J, Macromolecules, 37(21), 7850 (2004)
- Jiang XS, Xu HJ, Yin J, Polymer, 46(24), 11079 (2005)
- Aydin M, Arsu N, Yagci Y, Macromol. Rapid Commun., 24(12), 718 (2003)
- Eren TN, Graff B, Lalevee J, Avci D, Prog. Org. Coat., 128, 148 (2019)
- Cokbaglan L, Arsu N, Yagci Y, Jockusch S, Turro NJ, Macromolecules, 36(8), 2649 (2003)
- Jiang XS, Xu HJ, Yin H, Polymer, 45(1), 133 (2004)
- Jiang XS, Yin H, Polymer, 45(15), 5057 (2004)
- Jiang XS, Yin J, Macromol. Rapid Commun., 25(6), 748 (2004)
- Jiang XS, Yin J, J. Appl. Polym. Sci., 94(6), 2395 (2004)
- Lago MA, de Quiroz ARB, Sendon R, Bustos J, Nieto MT, Perfecto Paseiro, Photoinitiators: A Food Safety Review Food Additives & Contaminants: Part A, 32, 5 (2015).
- Sutter J, Dudler V, Meuwly R, Packaging Materials 8. Printing Inks for Food Packaging Composition and Properties of Printing Inks, ILSI-EUROPE, Belgium, 2011.
- Rothenbacher T, Baumann M, Fugel D, Food Addit. Contam., 24, 438 (2007)
- Dietliker K, Husler R, Birbaum JL, Ilg S, Villeneuve S, Studer K, Jung Y, Benkhoff J, Kura H, Matsumoto A, Oka H, Prog. Org. Coat., 58, 146 (2007)
- Dadashi-Silab S, Aydogan C, Yagci Y, Polym. Chem., 6, 6595 (2015)
- Avci D, Eren TN, Photopolym. Initiating Systems, 29, 131 (2018)
- Wei J, Wang H, Jiang X, Yin J, Macromol. Chem. Phys., 207, 1752 (2006)
- Jiang XS, Luo J, Yin J, Polymer, 50(1), 37 (2009)
- Temel G, Arsu N, J. Photochem. Photobiol. A-Chem., 202, 63 (2009)
- Akat H, Gacal B, Balta DK, Arsu N, Yagci Y, J. Polym. Sci. A: Polym. Chem., 48(10), 2109 (2010)
- Tiantian L, Zhilong S, Hongjie X, Xuesong J, Xiaodong M, Jie Y, Chin. Chem. Lett., 43, 46 (2017)
- Yamago S, Kayahara E, Yamada H, React. Funct. Polym., 69(7), 416 (2009)
- Davis KA, Matyjaszewski K, Statistical, Gradient, Block, and Graft Copolymers by Controlled/Living Radical Polymerizations, Springer, Berlin, 2002.
- Coessens V, Pintauer T, Prog. Polym. Sci, 26, 337 (2001)
- Braunecker WA, Matyjaszewski K, Prog. Polym. Sci, 32, 93 (2007)
- Matyjaszewski K, J. Macromol. Sci.-Pure Appl. Chem., 34, 1785 (1994)
- Matyjaszewski K, Xia JH, Chem. Rev., 101(9), 2921 (2001)
- Matyjaszewski K, Controlled/Living Radical Polymerization: From Synthesis to Materials, American Chemical Society, Washington DC, 2006.
- Oktay B, Demir S, Kayaman-Apohan N, Sci. Eng. C., 50, 386 (2015)
- Temel G, Arsu N, Yagci Y, Polym. Bull., 57(1), 51 (2006)
- Kandirmaz E, Apohan N, Gencoglu E, Prog. Org. Coat., 119, 36 (2018)
- Aydin M, Arsu N, Yagci Y, Jockusch S, Turro NJ, Macromolecules, 38(10), 4133 (2005)
- Smith CD, Grubbs H, Webster HF, Gungor A, Wightman JP, McGrath JE, High Perform. Polym., 3, 211 (1991)
- Riley DJ, Thesis D, Synthesis and Characterization of Phosphorus Containing Polycarylene ether)s, Virgina Polytechnic Institute, 1997.
- Beyler-Cigil A, Kahraman MV, Prog. Org. Coat, 101, 468 (2016)
- Ciofini D, Striova J, Camaiti M, Siano S, Polym. Degrad. Stabil., 123, 47 (2016)
- BS 4321:1969 Methods of test for printing inks (resistance of prints to various physical and chemical agents) Status: Superseded, Withdrawn (1969).
- Akdemir ZS, Kayaman-Apohan N, Kahraman MV, Kuruca SE, Gungor A, Karadenizli S, J. Biomater. Sci., 22, 857 (2011)
- Clemente I, Aznar M, Nerin C, Bosetti O, Food Addit. Contam Part A, 33, 703 (2016)