Neodymium-catalyzed Polymerization of C<sub>5</sub> Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers

Jin-Yan Hou; Fang Guo; Qian Hu; Yang Li; Zhao-Min Hou

doi:10.1007/s10118-019-2244-x

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Neodymium-catalyzed Polymerization of C₅ Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers

ARTICLE | Updated：2021-02-18

- Neodymium-catalyzed Polymerization of C₅ Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers
- Chinese Journal of Polymer Science Vol. 37, Issue 7, Pages: 674-680(2019)
- Affiliations：
  
  a.State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
  b.Fushun Yikesi New Material Co., Ltd., Fushun 113000, China
  c.Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Author bio：
  
  guofang@dlut.edu.cn
- Funds：
- DOI：10.1007/s10118-019-2244-x
  CLC：
- Received：16 January 2019，
  
  Revised：2019-2-10，
  
  Accepted：21 February 2019，
  
  Online First：26 March 2019，
  
  Published：2019-07
- Accepted：
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Citation: Hou, J. Y.; Guo, F.; Hu, Q.; Li, Y.; Hou, Z. M. Neodymium-catalyzed polymerization of C₅ fraction: Efficient synthesis of 1,3-pentadiene-isoprene copolymer rubbers. Chinese J. Polym. Sci. 2019, 37, 674–680 DOI: 10.1007/s10118-019-2244-x.

Jin-Yan Hou, Fang Guo, Qian Hu, et al. Neodymium-catalyzed Polymerization of C₅ Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers[J]. Chinese Journal of Polymer Science, 2019, 37(7): 674-680. DOI: 10.1007/s10118-019-2244-x.
Citation: Hou, J. Y.; Guo, F.; Hu, Q.; Li, Y.; Hou, Z. M. Neodymium-catalyzed polymerization of C₅ fraction: Efficient synthesis of 1,3-pentadiene-isoprene copolymer rubbers. Chinese J. Polym. Sci. 2019, 37, 674–680 DOI: 10.1007/s10118-019-2244-x. DOI：

Jin-Yan Hou, Fang Guo, Qian Hu, et al. Neodymium-catalyzed Polymerization of C₅ Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers[J]. Chinese Journal of Polymer Science, 2019, 37(7): 674-680. DOI: 10.1007/s10118-019-2244-x. DOI：

摘要

Abstract

The polymerization of C

fraction without separation and concentration by using a commercial available Nd(P

204

)

/Al

/AlEt

Cl has afforded for the first time a new kind of 1

3-pentadiene-isoprene random copolymers as rubber materials. Isoprene (IP) and

-1

3-pentadiene (EPD) acted as polymerization monomers

cyclopentadiene acted as poison

and other substances like alkanes

monoolefins

-1

3-pentadiene acted as solvents in this multicomponent C

fraction polymerization system. The data of kinetic experiments

NMR

and DSC indicated that the polymerization of C

fraction by Nd(P

204

)

/Al

/AlEt

Cl afforded the IP-EPD random copolymers. By controlling polymerization conditions such as [Al]/[Nd]

/[Cl] molar ratio and polymerization temperature

the random EPD-IP copolymers containing high

cis

-1

4-poly(IP) (with selectivity 96%) and moderate

cis

-1

4-poly(EPD) (with selectivity 60%) units with a low glass transition temperature (about −60 °C)

controllable molecular weight (

= 3.8 × 10

‒14.3 × 10

)

and moderate molecular weight distribution (

= 2.17‒2.78) were obtained in a high yield.

关键词

Keywords

references

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Neodymium-catalyzed Polymerization of C5 Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers

DOI：10.1007/s10118-019-2244-x

摘要

Abstract

关键词

Keywords

references

Neodymium-catalyzed Polymerization of C₅ Fraction: Efficient Synthesis of 1,3-Pentadiene-isoprene Copolymer Rubbers