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Spectroscopy Letters
An International Journal for Rapid Communication
Volume 40, 2007 - Issue 1: Spectrometry and Automation
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Original Articles

Unique Free‐Volume Change During the Phase Separation of Poly(N‐isopropylacrylamide) Aqueous Solution Studied by Positron Annihilation Lifetime Spectroscopy

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Pages 139-147 | Received 24 Apr 2006, Accepted 31 Jul 2006, Published online: 15 Feb 2011

References

  • Fujishige , S. , Kubota , K. and Ando , I. 1989 . Phase transition of aqueous solutions of poly(N‐isopropylacrylamide) and poly(N‐isoprop ylmethacrylamide) . J. Phys. Chem. , 93 : 3311 – 3313 .
  • Wang , X. , Qiu , X. and Wu , C. 1998 . Comparison of the coil‐to‐globule and the globule‐to‐coil transitions of a single poly(N‐isopropylacrylamide) homopolymer chain in water . Macromolecules , 31 : 2972 – 2976 .
  • Inomata , H. , Goto , S. , Otake , K. and Saito , S. 1992 . Effect of additives on phase transition of N‐isopropylacrylamide gels . Langmuir , 8 : 687 – 690 .
  • Walter , R. , Rička , J. , Quellet , C. , Nyffenegger , R. and Binkert , T. 1996 . Coil‐globule transition of poly(N‐isopropylacrylamide): a study of polymer‐surfactant association . Macromolecules , 29 : 4019 – 4028 .
  • Tokuhiro , T. , Amiya , T. , Mamada , A. and Tanaka , T. 1991 . NMR study of poly(N‐isopropylacrylamide) gels near phase transition . Macromolecules , 24 : 2936 – 2943 .
  • Katsumoto , Y. , Tanaka , T. , Sato , H. and Ozaki , Y. 2002 . Conformational change of poly(N‐isopropylacrylamide) during the coil‐globule transition investigated by attenuated total reflection/infrared spectroscopy and density functional theory calculation . J. Phys. Chem. A , 106 : 3429 – 3435 .
  • Lin , S.‐Y. , Chen , K.‐S. and Run‐Chu , L. 1999 . Thermal micro ATR/FT‐IR spectroscopic system for quantitative study of the molecular structure of poly(N‐isopropylacrylamide) in water . Polymer , 40 : 2619 – 2624 .
  • Maeda , Y. , Yamamoto , H. and Ikeda , I. 2003 . Phase separation of aqueous solutions of poly(N‐isopropylacrylamide) investigated by confocal raman microscopy . Macromolecules , 36 : 5055 – 5057 .
  • Liu , W. , Zhang , B. , Lu , W. W. , Li , X. , Zhu , D. , Yao , K. D. , Wang , Q. , Zhao , C. and Wang , C. 2004 . A rapid temperature‐responsive sol–gel reversible poly(N‐isopropylacrylamide)‐g‐methylcellulose copolymer hydrogel . Biomaterials , 25 : 3005 – 3012 .
  • Dlubek , G. and Eichler , S. 1998 . Do MELT or CONTIN programs accurately reveal the o‐Ps lifetime distribution in polymers? Analysis of simulated lifetime spectra . Phys. Stat. Sol. (a) , 168 : 333 – 350 .
  • Bockstahl , F. , Duplatre , G. , Miguel , M. d. G. and Burrows , H. D. 2000 . Probing the size of P84 block copolymer micelles in Pluronic aqueous solution by means of positron annihilation lifetime spectroscopy . Phys. Chem. Chem. Phys. , 2 : 4768 – 4771 .
  • Brandt , W. , Berko , S. and Walker , W. 1960 . Positronium decay in molecular substances . Phys. Rev. , 120 : 1289 – 1295 .
  • Tao , S. J. 1972 . Positronium annihilation in molecular substances . J. Chem. Phys. , 56 : 5499 – 5510 .
  • Eldrup , M. , Lightbody , D. and Sherwood , L. N. 1981 . The temperature dependence of positron lifetimes in solid pivalic acid . Chem. Phys. , 63 : 51 – 58 .
  • Mogensen , O. E. 1995 . Positron Annihilation in Chemistry Berlin : Springer .
  • Ujihira , Y. , Ryuo , T. , Kobayashi , Y. and Nomizu , T. 1978 . Dependence of ortho‐positronium pick‐off annihilation lifetime on free volume in organic molecular liquids calculated by Kincaid Eyring method, and positronium bubble formation . Appl. Phys. , 16 : 71 – 74 .
  • Kobayashi , Y. , Haraya , K. , Kamiya , Y. and Hattori , S. 1992 . Correlation between the ortho‐positronium pick‐off annihilation lifetime and the free‐volume in molecular liquids and polymers . Bull. Chem. Soc. Jpn. , 65 : 160 – 163 .
  • Ito , K. , Ujihira , Y. , Yamashita , T. and Horie , K. 1999 . Change in free volume during volume phase transition of poly(N‐isopropylacrylamide) gel as studied by positron annihilation lifetimes: temperature dependence . Polymer , 40 : 4315 – 4323 .
  • Süvegh , K. , Domján , A. , Vankó , G. , Iván , B. and Vértes , A. 1998 . Free volume and swelling dynamics of the poly[(2‐dimethylamino)ethyl methacrylate]‐l‐polyisobutylene amphiphilic network by positron annihilation investigations . Macromolecules , 31 : 7770 – 7775 .

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