In situ FTIR spectroscopic study of the conformational change of isotactic polypropylene during the crystallization process

被引：132
|
作者：
Zhu, XY [1 ]
Yan, DY [1 ]
Fang, YP [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Polymer Mat, Coll Chem & Chem Technol, Shanghai 200240, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2001年 / 105卷 / 50期
关键词：
D O I：
10.1021/jp012165f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The conformational change of isotactic polypropylene (iPP) during the crystallization process has been carefully Studied by Fourier transform infrared (FTIR) spectroscopy. The experimental measurements show that the iPP melt system is stable when the persistence length of helical sequences is less than 12 monomer units. As soon as the helix length exceeds 12 monomer units, the 3(1) helix conformation extends quickly and then crystallization occurs. These results are discussed in terms of Imai's microphase separation theory. It can be found that the experimental observation agrees very well with Imai's theory.
引用
收藏
页码：12461 / 12463
页数：3
相关论文
共 50 条
  • [21] Molecular fractionation in isotactic polypropylene during isothermal crystallization
    Feldhusen, C
    Wenig, W
    COLLOID AND POLYMER SCIENCE, 1998, 276 (08) : 747 - 749
  • [22] Molecular fractionation in isotactic polypropylene during isothermal crystallization
    C. Feldhüsen
    W. Wenig
    Colloid and Polymer Science, 1998, 276 : 747 - 749
  • [23] CHANGE IN SORPTION PROPERTIES OF ISOTACTIC POLYPROPYLENE UPON MULTIPLE CRYSTALLIZATION
    MARIN, AP
    KIRYUSHKIN, SG
    SHLYAPNIKOV, YA
    VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A, 1977, 19 (12): : 2685 - 2689
  • [24] Conformational Change and Orientation Fluctuations of Isotactic Polystyrene Prior to Crystallization
    Go Matsuba
    Keisuke Kaji
    Koji Nishida
    Toshiji Kanaya
    Masayuki Imai
    Polymer Journal, 1999, 31 : 722 - 727
  • [25] Conformational change and orientation fluctuations of isotactic polystyrene prior to crystallization
    Matsuba, G
    Kaji, K
    Nishida, K
    Kanaya, T
    Imai, M
    POLYMER JOURNAL, 1999, 31 (09) : 722 - 727
  • [26] Influence of the conformational order of glassy isotactic polypropylene on its crystallization and melting behaviour
    Chen, L
    Wang, YP
    Zhu, XY
    Yan, DY
    POLYMER INTERNATIONAL, 2004, 53 (02) : 131 - 135
  • [27] Isotactic polypropylene reversible crystallization investigated by modulated temperature and quasi-isothermal FTIR
    Di Lisio, Valerio
    Sturabotti, Elisa
    Francolini, Iolanda
    Piozzi, Antonella
    Martinelli, Andrea
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2019, 57 (14) : 922 - 931
  • [28] KINETICS AND MORPHOLOGY OF CRYSTALLIZATION DURING MELT SPINNING OF ISOTACTIC POLYPROPYLENE
    HENSON, HM
    SPRUIELL, JE
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1975, (169): : 41 - 41
  • [29] Flow induced crystallization in isotactic polypropylene during and after flow
    Ma, Zhe
    Balzano, Luigi
    Portale, Giuseppe
    Peters, Gerrit W. M.
    POLYMER, 2014, 55 (23) : 6140 - 6151
  • [30] In-Situ FTIR Study on the Crystallization Process of Supersaturated Magnesium Borate Solution Process
    Jia, Li-fan
    Song, Lu-lu
    Du, Yi-fa
    Zhang, Yun-hong
    Pan, Jian-ming
    Zhou, Yong-quan
    Zhu, Fa-yan
    SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44 (12) : 3353 - 3363
12345