PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl<sub>2</sub>-SUPPORTED ZIEGLER-NATTA CATALYST

Ai-hua He; Yang-wei Shi; Guo-qing Liu; Wei Yao; Bao-chen Huang

doi:10.1007/s10118-012-1149-8

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PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl₂-SUPPORTED ZIEGLER-NATTA CATALYST

PAPER | Updated：2023-01-03

- PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl₂-SUPPORTED ZIEGLER-NATTA CATALYST
- Chinese Journal of Polymer Science Vol. 30, Issue 5, Pages: 632-641(2012)
- Affiliations：
  
  Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Author bio：
  
  **Ai-hua He (贺爱华), E-mail: aihuahe@iccas.ac.cn
- Funds：
- DOI：10.1007/s10118-012-1149-8
  CLC：
- Received：17 October 2011，
  
  Revised：2011-11-25，
  
  Accepted：29 November 2011，
  
  Published：2012-09
- Accepted：
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Ai-hua He, Yang-wei Shi, Guo-qing Liu, et al. PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl₂-SUPPORTED ZIEGLER-NATTA CATALYST[J]. Chinese Journal of Polymer Science, 2012, 30(5): 632-641. DOI: 10.1007/s10118-012-1149-8.
DOI：

Ai-hua He, Yang-wei Shi, Guo-qing Liu, et al. PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl₂-SUPPORTED ZIEGLER-NATTA CATALYST[J]. Chinese Journal of Polymer Science, 2012, 30(5): 632-641. DOI: 10.1007/s10118-012-1149-8. DOI：

摘要

Abstract

Polypropylene (PP)/polybutene-1 (PB) alloys within reactor were prepared by MgCl

-supported Ziegler-Natta catalyst with sequential two-stage polymerization technology. First

propylene homo-polymerizations were carried out to form isotactic polypropylene (

PP) particles containing active catalyst. Then

butene-1 was subsequently polymerized to form polybutene-1 phase inside the

PP particles. Finally

PP/PB alloys with spherical shape and adjustable PB content were synthesized. The catalytic activity and catalytic stereospecificity of the Z-N catalyst in the two-stage polymerization process are discussed. The composition and physical properties of the PP alloys were characterized by FT-IR

C-NMR

SEM

DSC and XRD. It was found that the in-reactor PP alloys are mainly composed of PP and PB with a little amount of poly(butene-

-propylene) random copolymers and poly(butene-

block

-propylene) block copolymers. SEM measurements verified that the PB phases with size in the range of 300-400 nm dispersed in the PP matrix uniformly. The incorporation of PB upon the PP matrix affects the properties of final products greatly.

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PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl2-SUPPORTED ZIEGLER-NATTA CATALYST

DOI：10.1007/s10118-012-1149-8

摘要

Abstract

关键词

Keywords

references

PREPARATION AND CHARACTERIZATION OF SPHERICAL PP/PB ALLOYS WITH MgCl₂-SUPPORTED ZIEGLER-NATTA CATALYST