Studies on Molecular Motion of PVP in Mixed Solvents H2O/C3H6O

Abstract

Abstract:

Intrinsic viscosity (η) and molecular motion in ternary solution of poly (N-vinyl pyrrolidone) (PVP) in mixed solvents H₂O/C₃H₆O with different volume fractions of C₃H₆O were studied by viscosity and T_2H measurements and ¹H NMR spectroscopy. It was found that: η increased first and then decreased rapidly with increasing volume fraction of C₃H₆O. T_2H decreased first and then increased with the increasing volume fraction of C₃H₆O. A maximum value of η appeared at a C₃H₆O volume fraction of 40% at which point T_2Hhad a minimum value. Adding C₃H₆O destructed hydrogen bonds among the H₂O molecules, and dissociated free H₂O molecules could be adsorbed by PVP. Some of them might stay in the interior of PVP chain, while others might come to bind -CO of PVP chain. This would lead to increases in coil dimension and η of PVP. On the other hand, hydrogen bonds between PVP and H₂O could cause restriction in molecular motion. With a C₃H₆O fraction volume of 40%, the content of water were not high enough to extend PVP coils. Instead, the existence of water might shrink the PVP coils, making molecules motion faster.

Key words: NMR, intrinsic viscosity, T₂, PVP, mixed solvent

CLC Number:

O482.53

WANG Lin-Lin, ZIAO Xin, SUN Wan-Fu. Studies on Molecular Motion of PVP in Mixed Solvents H₂O/C₃H₆O[J]. Chinese Journal of Magnetic Resonance, 2010, 27(4): 540-547.

References

[1] Yan Rui(严瑞). Water Solubility Polymer(水溶性高分子)[M]. Beijing: Chemical Indesty Press, 1998.

[2] Wan Peng(万鹏). Research evolution of polyvinlpyrrolidone(聚乙烯基吡咯烷酮研究进展)[J]. Fine and Specialty Chenical(精细与专用化学品), 2004, 12(8): 8-10.

[3] Chen Zhong-hua(陈中华), Zheng Yu-dong(郑裕东), et al. Study of ultraviolet gafting polymerizing NVP onto PHBV film(聚羟基烷酸酯表面接枝聚乙烯基吡咯烷酮的研究)[J]. Journal of Matericals Science & Engineeing(材料科学与工程学报), 2004, 22(2): 189-192.

[4] Yi Guo-bin(易国斌), Wang Yong-liang(王永亮), Kang Zheng(康正), et al. Effect of polybyrrolidone on properties of polyvinlpyrrolidone/polycaprolactone Semi-Interpenetrating Hydrogel(聚乙烯基吡咯烷酮对聚乙烯基吡咯烷酮/聚己内酯半互穿网络水凝胶性能的影响)[J]. Petrochemical Technology(石油化工), 2008, 37(2): 183-186.

[5] Chu S G, Munk P. Thermodynamic properties of PS in mixed solvents studied by sediment tation equilibrium[J]. Macromolecules，1978，11: 879- 888.

[6] Nakata M, Kaji A. Light-scattering study of three-component systems 4: Thermodynamic prop erties of poly(methyl methacrylate) in l-phlorobutane+2-butanol and 1-chlorobutane+acetonit rile[J]. Macromolecules, 1988，21: 2 514-2 520．

[7] Omar M, Omar A, Rajai B. Viscometric investigations of polyvinylpyrrolidone in mixed solvents and with varying temperature[J]. Chinese Journal of Polymer Science, 2005, 23(4): 376-371. 

[8] Ren Lin(任琳), Zhu Ping-ping(朱平平), Yang Hai-yang(杨海洋), et al. Studies on viscosity of PVP in mixed solvent H₂O/THF (PVP在水/四氢呋喃混合溶剂中粘度的研究)[J]. Chinese Journal of Chemical Physics(化学物理学报), 2004, 17(4): 508-512.

[9] Nordmeier E, Lechner M D. Light scattering from polymer-mixed solvent systems. 1.selective adsorption phenomena of poly (N-vinylpyrrolidone )[J]. Macromolecules, 1991, 24: 2 529-2 537. 

[10] Wu Wen-peng(武文鹏)，Wang Nian(王念)，Feng Ji-wen(冯继文). An NMR study on phase transition of PNIPAAM in water/methanol mixtures(水/甲醇混合溶剂中PNOPAAM相变行为的NMR研究)[J]. Chinese J Magn Reson(波谱学杂志), 2004, 24(4): 487-493.

[11] Zhu Ping-ping(朱平平), Ren Lin(任琳), Yang Hai-yang(杨海洋), et al. Coil dimensions of polymer in mixed solvents (混合溶剂中高分子的尺寸)[J]. Journal of Functional Polymers(功能高分子学报), 2003, 16(2): 261-268.

[12] Zou Qin（邹琴），Zhao Xin（赵新），Sun Wan-fu(孙万赋). NMR study of polymerization of acrylonitrile by γ irradiation（丙烯腈γ辐射聚合的NMR研究）[J]. Chinese J Magn Reson(波谱学杂志), 2006，23（2）: 187-192.

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Studies on Molecular Motion of PVP in Mixed Solvents H₂O/C₃H₆O

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