Chinese Journal of Polymer Science

, Volume 37, Issue 7, pp 633–636 | Cite as

Ultrafast Form II to I Transition of Isotactic Polybutene-1

  • Xing Qiu
  • Umair Azhar
  • Jing-Qing Li
  • Ding-Hai Huang
  • Shi-Chun JiangEmail author
Rapid Communication


Isotactic polybutene-1 (iPB-1) is a semi-crystalline polymer with polymorph and puzzled structural transitions. The stable form I of iPB-1 with excellent physical and mechanical properties can hardly be obtained directly from the melt.; instead, metastable form II will spontaneously and slowly transform into form I. Bypassing the unstable form II formation is of great significance in polymer processing, which inspires extensive research on seeking the pathways to direct formation of form I. Methods for accelerating form II to I transition are another main focus in terms of practical approach for directly obtaining form I. Taking advantage of the solvent, an ultrafast transition of iPB-1 from form II to I within minutes has been achieved at room temperature. Such an ultrafast transition is detected after treating with dichloromethane (DCM) at 30 °C, though the framework of isothermally crystalized iPB-1 spherulite morphology could not be fully modified. The ultrafast II-I transition of iPB-1 is attributed to the solvent-induced packed-mesophase and temperature-selected chain conformation adjustment.This ultrafast transition would shed light on understanding the mechanisms of polymorphic transitions in iPB-1.


Polybutene-1 Ultrafast transition Mesophase Conformation 


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This work was financially supported by the National Natural Science Foundation of China (Nos. 51673147, 51573131, and 21374077).

Supplementary material

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Ultrafast Form II to I Transition of Isotactic Polybutene-1


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Copyright information

© Chinese Chemical Society Institute of Chemistry, Chinese Academy of Sciences Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Xing Qiu
    • 1
  • Umair Azhar
    • 1
  • Jing-Qing Li
    • 1
  • Ding-Hai Huang
    • 1
  • Shi-Chun Jiang
    • 1
    Email author
  1. 1.School of Materials Science and EngineeringTianjin UniversityTianjinChina

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