Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters

Hua-feng Shao; Shu-lei Wang; Xia Dong; Ai-hua He

doi:10.1007/s10118-016-1736-1

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Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters

Updated：2021-06-21

- Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters
- Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters
- Chinese Journal of Polymer Science 2016年34卷第2期页码：174-184
- Affiliations：
  
  a.Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), Qingdao University of Science and Technology, Qingdao 266042, China
  b.Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Author bio：
  
  **Ai-hua He (贺爱华), E-mail: aihuahe@iccas.ac.cn or ahhe@qust.edu.cn
- Funds：
  
  National Basic Research Program of China(2015CB654700;2015CB654706);National Scientific Supporting Program from Ministry of Science and Technology of China(2011BAE26B05);Shandong Province Natural Science Fund for Distinguished Young Scholars(JQ201213);National Natural Science Foundation of China(21174074);Nature Science Foundation of Shandong Province(ZR2013BM004);Shandong Province Science and Technology Development Plan(2012GGA05042)
- DOI：10.1007/s10118-016-1736-1
  中图分类号：
- 收稿：2015-08-06，
  
  修回：2015-10-06，
  
  录用：2015-10-07，
  
  纸质出版：2016-02
- Accepted：
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Hua-feng Shao, Shu-lei Wang, Xia Dong, 等. Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters[J]. Chinese Journal of Polymer Science, 2016,34(2):174-184.

Hua-feng Shao, Shu-lei Wang, Xia Dong, et al. Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters[J]. Chinese Journal of Polymer Science, 2016, 34(2): 174-184.
Hua-feng Shao, Shu-lei Wang, Xia Dong, 等. Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters[J]. Chinese Journal of Polymer Science, 2016,34(2):174-184. DOI： 10.1007/s10118-016-1736-1.

Hua-feng Shao, Shu-lei Wang, Xia Dong, et al. Linear Viscoelastic Behaviors of Polybutene-1 Melts with Various Structure Parameters[J]. Chinese Journal of Polymer Science, 2016, 34(2): 174-184. DOI： 10.1007/s10118-016-1736-1.

摘要

Abstract

The effects of weight-average molecular (

)

molecular weight distribution (MWD)

and isotacticity on the linear viscoelastic behavior of polybutene-1 melts are studied. It is observed that the linear viscoelastic region becomes slightly narrower with increasing frequency. In frequency sweeps

the transition of the polymer melts flow from Newtonian flow to power-law flow can be observed. The melts with higher

and/or broader MWD

as well as higher isotacticity exhibit higher complex viscosity

zero shear viscosity

viscoelasticity moduli

relaxation modulus

broader transition zone

while lower critical shear rate

non-Newtonian index

and the frequency at which elasticity begins to play an important role. The relationship of zero shear viscosity on

has been established

which agrees with the classical power law. Furthermore

it is found that the cross-over frequency decreases with increasing

and the cross-over modulus increases with narrowing MWD.

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