2017 (1) 3

https://doi.org/10.15407/polymerj.39.01.24

Effect of molecular mass of oligoester block of polyurethane and the ratio of components on the rheokinetic characteristics and mechanical properties of a poly(methyl methacrylate)/polyurethane blend

V.F. Shumsky, T.D. Ignatova, L.F. Kosyanchuk, I.P. Getmanchuk, O.I. Antonenko, O.V. Babich

Institute of Macromolecular Chemistry of NAS of Ukraine

48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2017, 39, No. 1: 24-31.

Section: Structure and properties.

Language: Russian.

Abstract:

The features of gel effect in the system based on radical polymerizing linear poly(methyl methacrylate) (PMMA) and crosslinked polyurethane (PU) have been discussed. The effect of molecular mass (MM) of oligoester block of polyurethane on rheokinetics of the formation process of PMMA/PU blend have been studied. The extreme dependence of rheokinetic characteristics on MM of elastic block of PU is established. Supposition is done that the change of scaling coefficients of h (t) dependence is associated: 1) for PMMA with attainment of a critical concentration of PMMA solution in methyl methacrylate when solution transits to a high elastic (rubbery) state; 2) for PU with evolution of microgel particles formed from branching of macromolecules; 3) for PMMA/PU blend with the onset of phase separation process. It is found that breaking elongation of PMMA/PU blend of composition 70/30 (wt/wt) in which PU based on oligo(diethylene glycol adipate) with MM = 1500 has the same order value as individual polyurethane network.

Key words: gel point, viscosity, conversion, polymer blends, phase separation.

Литература

1. 1. Michler G.H. High-impact rubber-modified polymers, Chapter 18. In book: Electron microscopy of polymers. Berlin: Springer, 2008: 351–371.
   2. Petrova G.N., Bejder Je.Ya. Udaroprochnye polimernye smesi na osnove polistirola, Plast. Massy (Rus.), 2013, no. 10: 27–31.
   3. Hur T., Manson J.A., Hertzberg R.W., Sperling L.H. Fatigue behavior of acrylic interpenetrating polymer networks. II, J. Appl. Polym. Sci., 1990, 39, no. 9: 1933–1947. https://doi.org/10.1002/app.1990.070390909
   4. Kim S.C., Klempner D., Frisch K.C., Radigan W., Frisch H.L. Polyurethane interpenetrating polymer networks. 1. Synthesis and morphology of polyurethane–poly(methyl methacrylate) interpenetrating polymer networks, Macromolecules, 1976, 9, no. 2: 258–263. https://doi.org/10.1021/ma60050a016
   5. Heim Ph., Wrotecki C., Avenel M., Gaillard P. High impact cast sheets of poly(methyl methacrylate) with low levels of polyurethane, Polymer, 1993, 34, no. 8: 1653–1660. https://doi.org/10.1016/0032-3861(93)90324-4
   6. Shumsky V.F., Kosyanchuk L.F., Todosiichuk T.T., Getmanchuk I.P., Babich O.V., Gomza Yu.P. Effect of a nanofiller on the rheokinetics of the formation in situ of poly(methyl methacrylate) – polyurethane blend, Reports Nat. Acad. Sci. Ukraine (Rus.), 2011, no. 2: 137–143.
   7. Kosyanchuk L.F., Ignatova T.D., Antonenko O.I., Vorontsova L.A., Babich O.V., Shumsky V.F. Effect of molecular mass of oligoester block and the ratio of components on the formation process of poly(methyl methacrylate)/polyurethane semi-IPN, Ukr. Chem. J. (Rus.), 2014, 80, no. 11: 42–51.
   8. Lachinov M.B., Korolev B.A., Dreval’ V.Ye., Cherep Ye.I., Zubov V.P., Vinogradov G.V., Kabanov V.A. Relation of autoaccelaration at radical polymerization of methyl methacrylate in bulk with structural changes of polymerizing system, Vysokomol. Soedin. Ser. A (Rus.), 1982, 24, no. 10: 2220–2226.
   9. Richter E.B., Macosko C.W. Viscosity changes during isothermal and adiabatic network urethane polymerization, Polym. Eng. Sci., 1980, 20, no. 14: 921–924. https://doi.org/10.1002/pen.760201402
   10. Gorbunova I.Yu., Kerber M.L., Balashov I.N., Kazakov S.I., Malkin A.Ya. Cure rheokinetics and change in properties of a phenol-urethane compostion: comparision of results obtained by different methods, Polym. Sci. Ser. A, 2001, 43, no. 8: 826–833.
   11. Shumsky V.F., Kosyanchuk L.F., Babich O.V., Grishchenko V.K., Busko N.A., Getmanchuk I.P., Antonenko O.I., Todosiichuk T.T. Effect of an oligoazoinitiator on the formation in situ of poly(methyl methacrylate) – polyurethane blend. Rheokinetics and morphology, Reports Nat. Acad. Sci. Ukraine (Rus.), 2012, no. 6: 122–128.
   12. Malkin A.Ya., Kulichikhin S.G. Rheology in the processes of polymer formation and conversion (Rus.), Moscow: Khimiya, 1985: 240.
   13. Winter H.H. Can the gel point of a cross-linking polymer be detected by the G’ – G” crossover? Polym. Eng. Sci., 1987, 27, no. 22:1698–1702. https://doi.org/10.1002/pen.760272209
   14. Gladyshev G.P., Popov V.A. Radical polymerization at high conversions (Rus.), Moscow: Nauka, 1974: 242.
   15. Malkin A.Ya., Isaev A.I. Rheology: concepts, methods, applications (Rus.), St. Petersburg: Professiya, 2010: 557.
   16. Zhavoronok E.S., Chalykh A.E., Kolesnikova E.F. Vliyanie prirody i funkcionalnosti jepoksidnyh oligomerov na reokinetiku ih otverzhdeniya, Plast. Massy (Rus.), 2013, no. 4: 16–20.