2019 (2) 2

Miscibility of the polyurethane elastomer with poly(vinyl chloride)

 T. L. Malysheva, A. L. Tolstov, E. V. Gres

Institute of Macromolecular Chemistry NAS of Ukraine

48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2019, 41, no. 2: 96-100

Section: Structure and properties.

Language: English.

Abstract:

An influence of interfacial interactions on the morphology, thermal stability and mechanical properties of the polymer blends derived from oligoethers based poly(urethane-urea)s (PUU) elastomers and poly(vinyl chloride) (PVC) were studied. The polymer blends were produced via solution-cast technique using N,N-dimethylformamide as a solvent. In accordance with DSC studies the polymer-polymer compositions with strong interfacial interactions and a size of dispersed PVC phase of 30–50 nm which uniformly distributed in elastomeric matrix are characterized by single phase transition temperature. Otherwise, for the compositions with weaker interfacial interactions were identified two glass transition temperatures and a size of dispersed PVC phase increases up to 2 мm. TGA thermograms demonstrate the enhanced thermal stability of the blends in comparison with neat PUU and thermal degradation process proceeds in three stages. The comparative analysis of experimental composition-dependent tensile strength at break curves with theoretical (additive) ones has shown an impact of interfacial interactions on physical-mechanical properties of the compositions. Finally, the tensile strength values determined for nanoheterogeneous composition with PVC content of 30 wt% grows by 30 %.

Keywords: polymer blend, poly(urethane-urea)s, poly(vinyl chloride), nanocomposite, thermal stability.

References

1. Wang C.B., Cooper S.L. Morphology and properties of poly(vinylchloride)-polyurethane blends. J. Appl. Polym. Sci., 1981, 26: 2989–3006. DOI: 10.1002/app.1981.070260915.
2. Kalfoglou N.K. Property-composiotion dependence of polyurethane-poly(vinyl chloride) blends. J. Appl. Polym. Sci., 1981, 26: 823–831. DOI: 10.1002/app.1981.070260308
3. Xiao F., Shen D., Zhang X. Studies on the morphology of blends of poly(vinyl chloride) and segmented polyurethanes. Polymer., 1987, 28: 2335–2345. DOI: 10.1016/0032-3861(87)90396-X
4. Sudaryanto, Takashi Nishino, Masaki Ueno, Asaoka S, Nakamae K Miscibility of segmented polyurethane/poly(vinyl chloride) blends. J. Appl. Polym. Sci., 2001, 82: 3022–3029. DOI: 10.1002/app2157
5. 5. Chang-Sik Ha, Yiyeon Kim, Won-Ki Lee, Won-Jei Cho Youngkyoo Kim Fracture toughness and properties of plasticized PVC and thermoplastic polyurethane blends. Polymer., 1998, 39: 4765-4772. DOI: 10.1016/S0032-3861(97)10326-3
6. Malysheva T.L., Golovan S.V., Starokadomsky D.L. The effect of interfacial interactions on a structure and properties of polyurethane elastomer/poly(vinyl chloride) blends. Open J. Org. Polym. Mater., 2011, 3: 1–7. DOI: 10.4236/ojopm.2011.11001
7. Malysheva T.L., Golovan S.V., Klimchyk D.A. The interfacial interactions in nanostructure polymer-polymer blends. Nanosyst. Nanomater. Nanotehnol., 2012, 10: 687–699. DOI: https://www.imp.kiev.ua/nanosys/media/pdf/2012/4/nano_vol10_iss4_p0687p0700_2012.pdf.
8. Kolesov S.V., Steklova A.M. Kineticheskie zakonomernosti termodestruktsii smesey polivinilhlorid – poliuretan. Vyisokomolekulyar. Soedineniya Ser.A., 1989, 31: 430–433. DOI:http://polymsci.ru/static/Archive/1989/VMS_1989_T31_2/VMS_1989_T31_2_426 429.pdf.
9. Pigłowski J., Skowroński T., Masiulanis B. Properties of poly(vinyl chloride) modified with thermoplastic polyurethane elastomers. Macromol. Mater. Eng., 1980, 85: 129–136. DOI: 10.1002/apmc.1980.050850108
10. Pielichowski K., Świerz-Motysia B. Influence of polyesterurethane plasticizer on the kinetics of poly(vinyl chloride) decomposition process. J. Therm. Anal. Calorim., 2006, 83: 207–212. DOI: 10.1007/s10973-005-7007-y.
11. Radhakrishnan M.N., Gopinathan M.N. Thermogravimetric analysis of PVC/NR-b-PU blends. J. Therm. Anal. Calorim., 2011, 103: 863–867. DOI: 10.1007/s10973-010-11131
12. Friedman H.L. Kinetic of thermal degradation of char-foming plastics from thermogravometry. Application to a phenolic plastic. J. Polymer Sci. Polymer Symposium, 1964, 6: 183-195. DOI:10.1002/polc.5070060121