Abstract
The pattern surface structure of a thin blend polymer film of Poly methyl methacrylate (PMMA) – Poly ethylene glycol (PEG) induced by Ar+ ion etching (5 keV) has been investigated by scanning electron microscopy. Blend polymer films have been obtained consisting of a hydrophilic PEG and a hydrophobic PMMA distributed in co-continuous phases. Four different compositions of the two polymers are dissolved in chloroform and irradiated with gamma rays (60Co) at 20 kGy to produce transparent films of blend polymer PMMA-PEG after casting. Self-assembled of PMMA-PEG film is obtained because of the high contrast between the two polymers. Ion-polymer interaction with a hydrophilic polymer (Ar+ +PEG) rather than the high etch resistance of hydrophobic polymer (Ar+ −PMMA) was observed. The results are discussed in terms of significant destruction of bonds in the blend polymer films as a result of which one polymer undergoes rapid dissociation rather than the other one. This means that etching with Ar+ ions of the PMMA domains are stable and PEG can be selective. The ATR-FTIR spectrum shows the absence of hydrogen bonds and XRD/DSC curves show the crystanility of PMMA depending on the PEG contents and gamma radiation effect, irradiated blend polymer PMMA/PEG has shown more resistant at thermal degradation than irradiated PMMA. This indicates that the PEG contents have an effect on the thermal stability of PMMA/PEG as detected by TGA. Finally, the pattern surface of irradiated blend polymer (PMMA-2%PEG) was plated with two coaxial layers subsequently of copper (Cu) and silver (Ag) using sputter technique.
References
Budkowski, A.: Interfacial Phenomena in Thin Polymer Films: Phase Coexistence and Segregation, Springer, Berlin, Heidelberg, p. 1–111 (1999)10.1007/3-540-48836-7_1Search in Google Scholar
Carolan, D., ChongH.M., Ivankovic, A, Kinloch, A. J. and Taylor, A. C., “Co-Continuous Polymer Systems: A Numerical Investigation”, Comput. Mater. Sci., 98, 24–33 (2015) 10.1016/j.commatsci.2014.10.039Search in Google Scholar
Dorati, R., Colonna, C., Serra, M., Genta, I., Modena, T., Pavanetto, F., and Conti, B., “γ-Irradiation of PEGd, lPLA and PEG-PLGA Multiblock Copolymers: I. Effect of Irradiation Doses”, AAPS Pharmscitech, 9, 718–725 (2008) PMid:18528761; 10.1208/s12249-008-9103-3Search in Google Scholar
Forster, P. L., Martins, N. A., Parra, D. F., Egute, N. S. and Lugao, A. B., “Influence of Gamma Radiation on Thermal Properties and Water Vapor Transmission of Poly(3-hydroxybutyrate) (PHB) in Blends”, in International Nuclear Atlantic Conference, Meeting on Nuclear Applications, 9th Meeting on Reactor Physics and Thermal Hydraulics, 16th Meeting on Nuclear Industry, September 27–October 2, Rio de Janeiro (2009), http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/41/097/41097068.pdfSearch in Google Scholar
Fragala, M. E., Compagnini, G., Torrisi, L. and Puglisi, O., “Ion Beam Assisted Unzipping of PMMA”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 141, 169–173 (1998) 10.1016/S0168-583X(98)00087-1Search in Google Scholar
Harrison, C., Park, M., Chaikin, P., Register, R. A., Adamson, D. H. and Yao, N., “Depth Profiling Block Copolymer Microdomains”, Macromolecules, 31, 2185–2189 (1998) 10.1021/ma9716037Search in Google Scholar
Ise, N., Tabushi, I.: An Introduction to Speciality Polymers, CUP Archive, Cambridge University Press (1983)Search in Google Scholar
Kamcev, J., Germack, D. S., Nykypanchuk, D., Grubbs, R. B., Nam, C. Y. and Black, C. T., “Chemically Enhancing Block Copolymers for Block-Selective Synthesis of Self-Assembled Metal Oxide Nanostructures”, ACS Nano, 7, 339–346 (2012)Search in Google Scholar
Kashiwagi, T., Inaba, A., Brown, J. E., Hatada, K., Kitayama, T. and Masuda, E., “Effects of Weak Linkages on the Thermal and Oxidative Degradation of Poly(methyl methacrylates)”, Macromolecules, 19, 2160–2168 (1986) 10.1021/ma00162a010Search in Google Scholar
Kaur, A., Singh, J., Kumar, J., Bhatnagar, C., Kumar Dixit, S., Kumar Bhatnagar, P., Chandra Mathur, P., Covas, J. A. and da Conceicao Paiva, M., “Enhancement in the Performance of Multi-Walled Carbon Nanotube: Poly(methylmethacrylate) Composite Thin Film Ethanol Sensors through Appropriate Nanotube Functionalization”, Mater. Sci. Semicond. Process., 31, 166–174 (2015) 10.1016/j.mssp.2014.11.030Search in Google Scholar
Li, Y., Ma, Q., Huang, C., and Liu, G., “Crystallization of Poly (Ethylene Glycol) in Poly (Methyl Methacrylate) Networks. Materials Science, 19, 147–151 (2013).10.5755/j01.ms.19.2.4430Search in Google Scholar
Lignaun, J., Meyerhoff, G., “The Spontaneous Polymerization of Methyl-Methacrylate: VI. Polymerization in Solution – Participation of Transfer Agents in the Initiation Reaction”, Polymer, 24, 1473–1478 (1983) 10.1016/0032-3861(83)90233-1Search in Google Scholar
Patil, M. P., Gaikwad, N. J., “Characterization of Gliclazide-Polyethylene Glycol Solid Dispersion and its Effect on Dissolution”, Brazilian Journal of Pharmaceutical Sciences, 47, 161–166 (2011) 10.1590/S1984-82502011000100020Search in Google Scholar
Pielichowski, K, Flejtuch, K., “Differential Scanning Calorimetry Study of Blends of Poly(ethylene glycol) with Selected Fatty Acids”, Macromol. Mater. Eng., 288, 259–264 (2003) 10.1002/mame.200390022Search in Google Scholar
Qi, N., Chen, Z. Q., and Uedono, A., “Molecular Motion and Relaxation below Glass Transition Temperature in Poly(methyl methacrylate) Studied by Positron Annihilation”, Radiat. Phys. Chem., 108, 81–86 (2015).10.1016/j.radphyschem.2014.11.018Search in Google Scholar
Simon, S. L., Gillham, J. K., “Reaction Kinetics and TTT Cure Diagrams for Off Stoichiometric Ratios of a High Tg Epoxy/Amine System”, J. Appl. Polym. Sci., 46, 1245–1270 (1992) 10.1002/app.1992.070460714Search in Google Scholar
Singh, P., Kumar, R., Virk, H. S., and Prasad, R., “Modification of Optical, Chemical and Structural Response of Polymethyl Methacrylate Polymer by 70 MeV Carbon Ion Irradiation”, Indian Journal of Pure & Applied Physics, 48, 321–325 (2010)Search in Google Scholar
Singh, T. J., Bhat, S. V., “Morphology and Conductivity Studies of a New Solid Polymer Electrolyte: (PEG) Xliclo4”, Bull. Mater. Sci., 26, 707–714 (2003) 10.1007/BF02706768Search in Google Scholar
Soares, B. G., Barbosa, R. V. and Covas, J. C., “Polystyrene/EVA Melt Blends Compatibilized with EVA-Graft-Polystyrene”, J. Appl. Polym. Sci., 65, 2141–2149 (1997) 10.1002/(SICI)1097-4628(19970912)65:11<2141::AID-APP10>3.0.CO;2-6Search in Google Scholar
Song, M., Hourston, D. J., Pollock, H. M. and Hammiche, A., “Modulated Differential Scanning Calorimetry: 14. Effect of Molecular Interactions on Glass Transition Behaviour and Increment of Heat Capacity in Miscible Polymer Blends”, Polymer, 40, 4763–4767 (1999) 10.1016/S0032-3861(98)00705-8Search in Google Scholar
Stickler, M., Meyerhoff, G., “The Spontaneous Thermal Polymerization of Methyl Methacrylate: 5. Experimental Study and Computer Simulation of the High Conversion Reaction at 130°C”, Polymer, 22, 928–933 (1981) 10.1016/0032-3861(81)90270-6Search in Google Scholar
Sun, J., Zhong, X., “Studies on Radiation Stability of Polymers”, (IAEA-TECDOC-1062) International Atomic Energy Agency (IAEA) (1999)Search in Google Scholar
Tang, Z.-F., Chen, Y.-S., Qiu, G.-N., Tong, B., Hua, L. I., Tang, X.-X. and Kong, X.-B., “Morphology of Irradiated PMMA Membranes Prepared by Phase Inversion with Supercritical CO2”, Nuclear Science and Techniques, 24, 39–45 (2013)Search in Google Scholar
Tatro, S. R., Clayton, L. M., Muisener, P. O. R., Rao, A. M. and Harmon, J. P., “Probing Multi-Walled Nanotube/Poly(methyl methacrylate) Composites with Ionizing Radiation”, Polymer, 45, 1971–1979 (2004) 10.1016/j.polymer.2004.01.012Search in Google Scholar
Utracki, L. A., Wilkie, C. A.: Polymer Blends Handbook, Vol. 1, Kluwer, Dordrecht, The Netherlands (2002)10.1007/0-306-48244-4_1Search in Google Scholar
Wang, C., Feng, L., Yang, H., Xin, G., Li, W., Zheng, J., Tian, W. and Li, X., “Graphene Oxide Stabilized Polyethylene Glycol for Heat Storage”, Phys. Chem. Chem. Phys., 14, 13233–13238 (2012) PMid:22914763; 10.1039/c2cp41988bSearch in Google Scholar
Xue, L., Han, Y., “Pattern Formation by Dewetting of Polymer Thin Film”, Prog. Polym. Sci., 36, 269–293 (2011) 10.1016/j.progpolymsci.2010.07.004Search in Google Scholar
Xue, L.-J., Zhang, J.-L. and Han, Y.-C., “Phase Separation Induced Ordered Patterns in Thin Polymer Blend Films”, Prog. Polym. Sci., 37, 564–594 (2012) 10.1016/j.progpolymsci.2011.09.001Search in Google Scholar
Zaporojtchenko, V., Zekonyte, J., Erichsen, J. and Faupel, F., “Etching Rate and Structural Modification of Polymer Films during Low Energy Ion Irradiation”, Nucl. Instrum. Methods Phys. Res. Sect. B, 208, 155–160 (2003) 10.1016/S0168-583X(03)00625-6Search in Google Scholar
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