Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy

注册 English

Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy

Qian-Hong Jiang , Chun-Bo Zhang , Jian Yang , Ying Zhao , Yi-Zhuang Xu , Du-Jin Wang

Citation: Qian-Hong Jiang, Chun-Bo Zhang, Jian Yang, Ying Zhao, Yi-Zhuang Xu, Du-Jin Wang. Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy[J]. Chinese Chemical Letters, 2015, 26(2): 197-199. doi: 10.1016/j.cclet.2015.01.015 shu

shu

Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy

通讯作者: Ying Zhao,
Yi-Zhuang Xu,

基金项目:
This project is financially supported by the National Natural Science Foundation of China (No. 51373003). The BSRF is acknowledged for kindly providing the beam time. (No. 51373003)

摘要: Two-dimensional FT-IR correlation spectroscopy was used to reveal the structural changes of isotactic polypropylene (iPP) mesophase during the heating process. The co-relationship among the regular helical bands of iPP was discussed according to synchronous spectrum. The results show that the segments with different length-helixes were found to undergo a disordered process in the temperature range of 25-60℃.

关键词:

English

Investigation on structural changes of isotactic polypropylene mesophase in the heating process by using two-dimensional infrared correlation spectroscopy

1.
a Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing; 100190, China;
2.
b College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Corresponding author: Ying Zhao, Yi-Zhuang Xu,

Received Date: 02 November 2014
Available Online: 21 January 2015
Fund Project:

Abstract: Two-dimensional FT-IR correlation spectroscopy was used to reveal the structural changes of isotactic polypropylene (iPP) mesophase during the heating process. The co-relationship among the regular helical bands of iPP was discussed according to synchronous spectrum. The results show that the segments with different length-helixes were found to undergo a disordered process in the temperature range of 25-60℃.

Key words:

1. [1] S. Brü ckner, S.V. Meille, V. Petraccone, B. Pirozzi, Polymorphism in isotactic polypropylene, Prog. Polym. Sci. 16 (1991) 361-404.[1] S. Brü ckner, S.V. Meille, V. Petraccone, B. Pirozzi, Polymorphism in isotactic polypropylene, Prog. Polym. Sci. 16 (1991) 361-404.
2. [2] B. Lotz, J.C. Wittmann, A.J. Lovinger, Structure and morphology of polypropylenes: a molecular analysis, Polymer 37 (1996) 4979-4992.[2] B. Lotz, J.C. Wittmann, A.J. Lovinger, Structure and morphology of polypropylenes: a molecular analysis, Polymer 37 (1996) 4979-4992.
3. [3] J. Varga, Review supermolecular structure of isotactic polypropylene, J. Mater. Sci. 27 (1992) 2557-2579.[3] J. Varga, Review supermolecular structure of isotactic polypropylene, J. Mater. Sci. 27 (1992) 2557-2579.
4. [4] G. Natta, P. Conrradini, Structure and properties of isotactic polypropylene, II Nuovo Cimento 15 (1960) 40-51.[4] G. Natta, P. Conrradini, Structure and properties of isotactic polypropylene, II Nuovo Cimento 15 (1960) 40-51.
5. [5] S.V. Meille, D.R. Ferro, S. Brueckner, A.J. Lovinger, F.J. Padden, Structure of betaisotactic polypropylene: a long-standing structural puzzle, Macromolecules 27 (1994) 2615-2622.[5] S.V. Meille, D.R. Ferro, S. Brueckner, A.J. Lovinger, F.J. Padden, Structure of betaisotactic polypropylene: a long-standing structural puzzle, Macromolecules 27 (1994) 2615-2622.
6. [6] Z.G. Wang, B.S. Hsiao, S. Srinivas, et al., Phase trandformation in quenched mesomorphic isotactic polypropylene, Polymer 42 (2001) 7561-7566.[6] Z.G. Wang, B.S. Hsiao, S. Srinivas, et al., Phase trandformation in quenched mesomorphic isotactic polypropylene, Polymer 42 (2001) 7561-7566.
7. [7] R. Androsch, M.L. Di Lorenzo, C. Schick, B. Wunderlich, Mesophases in polyethylene, polypropylene, and poly(1-butene), Polymer 51 (2010) 4639-4662.[7] R. Androsch, M.L. Di Lorenzo, C. Schick, B. Wunderlich, Mesophases in polyethylene, polypropylene, and poly(1-butene), Polymer 51 (2010) 4639-4662.
8. [8] D. Mileva, R. Androsch, E. Zhuravlev, C. Schick, B. Wunderlich, Isotropization, perfection and reorganization of the mesophase of isotactic polypropylene, Thermochim. Acta 522 (2011) 100-109.[8] D. Mileva, R. Androsch, E. Zhuravlev, C. Schick, B. Wunderlich, Isotropization, perfection and reorganization of the mesophase of isotactic polypropylene, Thermochim. Acta 522 (2011) 100-109.
9. [9] C. Marega, V. Causin, A. Marigo, A SAXS-WAXD study on the mesomorphic-a transition of isotactic polypropylene, J. Appl. Polym. Sci. 109 (2008) 32-37.[9] C. Marega, V. Causin, A. Marigo, A SAXS-WAXD study on the mesomorphic-a transition of isotactic polypropylene, J. Appl. Polym. Sci. 109 (2008) 32-37.
10. [10] R. Androsch, In situ atomic force microscopy of the mesomorphic-monoclinic phase transition in isotactic polypropylene, Macromolecules 41 (2008) 533-535.[10] R. Androsch, In situ atomic force microscopy of the mesomorphic-monoclinic phase transition in isotactic polypropylene, Macromolecules 41 (2008) 533-535.
11. [11] J.C. Zhao, Z. Peng, J.M. Zhang, G.C. Li, In situ FT-IR spectroscopy study on the conformational changes of quenched isotactic polypropylene during stepwise heating, Polym. Bull. 67 (2011) 1649-1659.[11] J.C. Zhao, Z. Peng, J.M. Zhang, G.C. Li, In situ FT-IR spectroscopy study on the conformational changes of quenched isotactic polypropylene during stepwise heating, Polym. Bull. 67 (2011) 1649-1659.
12. [12] H. Asakawa, K. Nishida, J. Yamamoto, R. Inoue, T. Kanaya, Heating rate effects on the crystallization behavior of isotactic polypropylene from mesophase-a depolarized light transmission study, Polymer 53 (2012) 2777-2782.[12] H. Asakawa, K. Nishida, J. Yamamoto, R. Inoue, T. Kanaya, Heating rate effects on the crystallization behavior of isotactic polypropylene from mesophase-a depolarized light transmission study, Polymer 53 (2012) 2777-2782.
13. [13] I. Noda, Generalized two-dimensional correlation method applicable to infrared, raman,and other types of spectroscopy, Appl. Spectrosc. 47 (1993) 1329-1336.[13] I. Noda, Generalized two-dimensional correlation method applicable to infrared, raman,and other types of spectroscopy, Appl. Spectrosc. 47 (1993) 1329-1336.
14. [14] T. Zhou, Z.Y. Wu, Y.Y. Li, et al., Order-order, lattice disordering, and order-disorder transition in SEBS studied by two-dimensional correlation infrared spectroscopy, Polymer 51 (2010) 4249-4258.[14] T. Zhou, Z.Y. Wu, Y.Y. Li, et al., Order-order, lattice disordering, and order-disorder transition in SEBS studied by two-dimensional correlation infrared spectroscopy, Polymer 51 (2010) 4249-4258.
15. [15] J.M. Zhang, H. Tsuji, I. Noda, Y. Ozaki, Structural changes and crystallization dynamics of poly(L-lactide) during the cold-crystallization process investigated by infrared and two-dimensional infrared correlation spectroscopy, Macromolecules 37 (2004) 6433-6439.[15] J.M. Zhang, H. Tsuji, I. Noda, Y. Ozaki, Structural changes and crystallization dynamics of poly(L-lactide) during the cold-crystallization process investigated by infrared and two-dimensional infrared correlation spectroscopy, Macromolecules 37 (2004) 6433-6439.
16. [16] K. Zheng, R.G. Liu, Y. Huang, A two-dimensional IR correlation spectroscopic study of the conformational changes in syndiotactic polypropylene during crystallization, Polym. J. 42 (2010) 81-85.[16] K. Zheng, R.G. Liu, Y. Huang, A two-dimensional IR correlation spectroscopic study of the conformational changes in syndiotactic polypropylene during crystallization, Polym. J. 42 (2010) 81-85.
17. [17] P.B. Mcallister, T.J. Carter, R.M. Hinde, Structure of the quenched form of polypropylene, J. Polym. Sci.: Polym. Phys. 16 (1978) 49-57.[17] P.B. Mcallister, T.J. Carter, R.M. Hinde, Structure of the quenched form of polypropylene, J. Polym. Sci.: Polym. Phys. 16 (1978) 49-57.
18. [18] R.L. Miller, On the existence of near-range order in isotactic polypropylenes, Polymer 1 (1960) 135-143.[18] R.L. Miller, On the existence of near-range order in isotactic polypropylenes, Polymer 1 (1960) 135-143.
19. [19] X.Y. Li, Z. Ma, F.M. Su, et al., New understanding on the memory effect of crystallized iPP, Chin. J. Polym. Sci. 32 (2014) 1224-1233.[19] X.Y. Li, Z. Ma, F.M. Su, et al., New understanding on the memory effect of crystallized iPP, Chin. J. Polym. Sci. 32 (2014) 1224-1233.
20. [20] C. Wang, T.C. Hsieh, Y.W. Cheng, Solution-electrospun isotactic polypropylene fibers: processing and microstructure development during stepwise annealing, Macromolecules 43 (2010) 9022-9029.[20] C. Wang, T.C. Hsieh, Y.W. Cheng, Solution-electrospun isotactic polypropylene fibers: processing and microstructure development during stepwise annealing, Macromolecules 43 (2010) 9022-9029.
21. [21] H.N. An, B.J. Zhao, Z. Ma, et al., Shear-induced conformational ordering in the melt of isotactic polypropylene, Macromolecules 40 (2007) 4740-4743.[21] H.N. An, B.J. Zhao, Z. Ma, et al., Shear-induced conformational ordering in the melt of isotactic polypropylene, Macromolecules 40 (2007) 4740-4743.
22. [22] I. Noda, Two-dimensional infrared (2D-IR) spectroscopy:theory and applications, Appl. Spectrosc. 44 (1990) 550-561.[22] I. Noda, Two-dimensional infrared (2D-IR) spectroscopy:theory and applications, Appl. Spectrosc. 44 (1990) 550-561.

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