Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry

Wen-Yan Wang; Yan-Feng Jiang; Xing-Long Zhao; Deng-Fei Wang; Teng-Jie Ge; Dimitri A. Ivanov; Ying Lu; Yong-Feng Men

doi:10.1007/s10118-025-3346-2

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Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry

RESEARCH ARTICLE | Updated：2025-07-26

- Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry
- Chinese Journal of Polymer Science Vol. 43, Issue 8, Pages: 1458-1467(2025)
- Affiliations：
  
  a.Daqing Petrochemical Research Center, Petrochemical Research Institute of PetroChina, Daqing 163714, China
  b.Biomaterials Research Axis, Sirius University of Science and Technology, 1 Olympic Ave, 354340 Sochi, Russia
  c.State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  d.School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  luying@ciac.ac.cn (Y.L.)
  men@ciac.ac.cn (Y.F.M.)
- Funds：
- DOI：10.1007/s10118-025-3346-2
  CLC：
- Received：17 February 2025，
  
  Revised：2025-03-18，
  
  Accepted：31 March 2025，
  
  Online First：23 May 2025，
  
  Published：01 August 2025
- Accepted：
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Wang, W. Y.; Jiang, Y. F.; Zhao, X. L.; Wang, D. F.; Ge, T. J.; Ivanov, D. A.; Lu, Y.; Men, Y. F. Crystallization and melting behaviors of polyolefin elastomer studied by fast scanning chip calorimetry. Chinese J. Polym. Sci. 2025, 43, 1458–1467

Wen-Yan Wang, Yan-Feng Jiang, Xing-Long Zhao, et al. Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry[J]. Chinese Journal of Polymer Science, 2025, 43(8): 1458-1467.
Wang, W. Y.; Jiang, Y. F.; Zhao, X. L.; Wang, D. F.; Ge, T. J.; Ivanov, D. A.; Lu, Y.; Men, Y. F. Crystallization and melting behaviors of polyolefin elastomer studied by fast scanning chip calorimetry. Chinese J. Polym. Sci. 2025, 43, 1458–1467 DOI： 10.1007/s10118-025-3346-2.

Wen-Yan Wang, Yan-Feng Jiang, Xing-Long Zhao, et al. Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry[J]. Chinese Journal of Polymer Science, 2025, 43(8): 1458-1467. DOI： 10.1007/s10118-025-3346-2.

摘要

The crystallization time of crystallizable segments with different lengths in two POE samples was established using FSC technique. The long crystallizable chain segments would first nucleate and crystallize. The equilibrium melting temperature cannot be determined in POE samples by plotting

Abstract

The crystallization behavior of two commercial polyolefin elastomer (POE) samples was investigated using the fast scanning chip calorimetry (FSC) technique. Non-isothermal crystallization of the POE samples during cooling to low temperatures cannot be inhibited under the largest efficient cooling rate employed in the current work. Thus

the isothermal crystallization of POE samples was limited to a narrow temperature range. When the POE samples were cooled to a certain temperature below the non-isothermal crystallization temperature for crystallization

a crystallization time dependent melting peak appeared in the low temperature region besides the high temperature melting peak originated from the non-isothermal crystallization. This low temperature melting peak was arisen from the melting of crystals isothermally crystallized at the selected crystallization temperature. At each crystallization temperature

the lengths of crystallizable segments were different

thus

the low melting peak increased with increasing the crystallization temperature. In terms of the high melting peak attributed to the non-isothermally crystallized crystals

it somehow decreased with increasing crystallization time and then became constant with further increasing crystallization time at the selected crystallization temperature. This could be explained by the fact that the crystallizable sequences with longer length would nucleate and crystallize first to form thicker crystals during cooling. The subsequent crystallization contributed by the shorter crystallizable sequences will result in the formation of thinner crystals

causing the melting peak to shift to the lower temperature.

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references

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