Hyperbranched Polyamine as Multipurpose Polymeric Additives for LDPE and Plasticized PVC

Sibdas Singha Mahapatra; Niranjan Karak

doi:10.18321/ectj161

Authors

Sibdas Singha Mahapatra Department of Chemical Sciences, Tezpur University, Napaam 784028, India
Niranjan Karak Department of Chemical Sciences, Tezpur University, Napaam 784028, India

DOI:

https://doi.org/10.18321/ectj161

Abstract

The hyperbranched polyamine based on 4,4'-sulfonyl dianiline was obtained by the earlier reported method and used as multipurpose polymeric additives for low density polyethylene (LDPE) and plasticized polyvinyl chloride (PVC). The effect of this hyperbranched polyamine on the processability, mechanical properties, flammability behavior, etc. has been studied. The mechanical properties of the compounded polymers before and after thermal aging and leaching in different chemical media were also studied at dose levels of 1 to 7.5% (w/w) of the additive. SEM study indicates that both polymers exhibit homogenous morphology at all dose levels. The mechanical properties like tensile strength (T.S.) and hardness are improved by incorporation of hyperbranched polymeric additive and these properties increased with the increase of dose level. The flame-retardant behavior as measured by limiting oxygen index (LOI) of all samples indicates an enhanced LOI value compared to the polymer without hyperbranched additive. The processing behavior of all compounded polymers was investigated by measurement of solution viscosity and MFR value. The effect of leaching and heat aging of the polymers on the mechanical properties showed that hyperbranched polyamine is better compared to the commercially used antidegradant, N-isopropyl-Nphenyl p-phenylene diamine (IPPD).

References

1. J.A. Brydson, "Plastics Materials", 4-th Ed., Butterworths, London, 1982.

2. R. Gachter and H. Muller (Eds.), "Plastics Additives Handbook", 3-rd Edition, Hanser Publishers, Munich, 1990.

3. D. Montanu, in "Developments in Polymer Stabilization", Vol. 8, edited by G. Scott, Applied Science, London, 1987.

4. B.I. Voit, C.R. Chimie., 2003, 6, 821.

5. Hult, M. Johansson and E. Malmstrom, Adv. Polym. Sci., 1999, 143, 1.

6. T.H. Mourey, S.R. Turner, M. Rubinstein J.M.J. Frechet, C.J. Hawker and K.L. Wooley, Macromolecules, 1992, 25, 2401.

7. H. Stutz, J. Polym. Sci., Part B: Polym. Phys., 1995, 33, 333.

8. E. Malmstrom and A. Hult, J. Macromol. Sci- Rev. Macromol. Chem. Phys., 1997, 37, 555.

9. Y.H. Kim and O.W. Webster, Macromolecules, 1992, 25, 5561.

10. D. Schmaljohann, P. Potschke, R. Hassler, B.I. Voit, P.E. Froehling, B. Mostert and J.A. Loontjens, Macromolecules, 1999, 32, 6333.

11. D.J. Massa, K.A. Shriner, S.R. Turner and B.I. Voit, Macromolecules, 1995, 28, 3214.

12. Y. Hong, J.J. Cooper-White, M.E. Mackay, C.J. Hawker, E. Malmstrom and N. Rehnberg, J. Rheol., 1999, 43, 781.

13. T. Huber, P. Potschke, G. Pompe, R. Habler, B. Voit, S. Grutke and F. Grubler, Macromol. Mater. Eng., 2000, 280/281, 33.

14. C. M. Nunez, A. L. Andrady, R. K. Guo, J. N. Baskir and D. R. Morgan, J. Polym. Sci., Part A: Polym. Chem., 1998, 36, 2111.

15. J.Z. Diao, W.W. Ba, T.H. Ding and J.T. Niu, Irn. Polym. J., 2005, 14, 287.

16. S.S. Mahapatra, N. Karak, J. Appl. Polym. Sci., (communicated).

17. O. Monticelli, D. Oliva, S. Russo, C. Clausnitzer, P. Potschke and B. Voit, Macromol. Mater. Eng., 2003, 288, 318.

18. T.J. Mulkern and N.C. Beck Tan, Polymer, 2000, 41, 3193.

19. N. Karak and S. Maiti, J. Appl. Polym. Sci., 1998, 98, 927.

20. X.P. Hu, W.Y. Li, Y.Z. Wang, J. Appl. Polym. Sci., 2004, 94, 1556.

21. W.C. Kuryla and A.J. Papa (Eds.), "Flame Retardancy of Polymeric Materials", Vol. 2 Decker, New York, 1973.

22. B.D. Sarwade, P.P. Wadgaonkar, S.S. Mahajan, Eur. Polym. J., 1988, 24, 1057.