Effects of 1-n-tetradecyl-3-methylimidazolium bromide on the properties of polypropylene

Yunsheng Ding*, Haiou Tang, Xiaomin Zhang, Shuying Wu, Renyan Xiong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In this study, 1-n-tetradecyl-3-methylimidazolium bromide ([C 14mim]Br), one kind of imidazolium ionic liquids (imi-IL), was incorporated into polypropylene (PP) via melting blend. The structure and properties of PP/[C14mim]Br blend were investigated by differential scanning calorimetry (DSC), dynamical mechanical analysis (DMA), and thermogravimetric analysis (TGA). DSC results show that the [C14mim]Br has effects on the melting and crystallization process so that PP and PP/[C14mim]Br blends (weight ratio is 100/3) have different melting and crystallization temperature. Results of DMA show that the [C14mim]Br has the effects on the plasticization and crystallization of PP, and the glass transition temperature (Tg) of PP decreases around 11°C when 3 weight shares of [C14mim]Br were incorporated into 100 weight shares of PP. Moreover, both tensile strength and impact strength of PP have been improved reasonably in this situation. TGA also shows the thermal stability of PP is not affected by the [C14mim]Br, which was incorporated into it though its molecule is small.

Original languageEnglish
Pages (from-to)1138-1142
Number of pages5
JournalJournal of Applied Polymer Science
Issue number2
Publication statusPublished - 15 Jul 2008
Externally publishedYes


  • imidazolium ionic liquid
  • polypropylene
  • blend
  • glass transition temperature
  • mechanical properties
  • thermal properties

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