The Influence of <italic style="font-style: italic">Trans</italic>-1,4-poly(butadiene-<italic style="font-style: italic">co</italic>-isoprene) Copolymer Rubbers (TBIR) with Different Molecular Weights on the NR/TBIR Blends

Hao Wang; Ri-Guo Wang; Yun-Sheng Ma; Bo Luan; Ai-Hua He

doi:10.1007/s10118-019-2229-9

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The Influence of Trans-1,4-poly(butadiene-co-isoprene) Copolymer Rubbers (TBIR) with Different Molecular Weights on the NR/TBIR Blends

ARTICLE | Updated：2021-02-18

- The Influence of Trans-1,4-poly(butadiene-co-isoprene) Copolymer Rubbers (TBIR) with Different Molecular Weights on the NR/TBIR Blends
- Chinese Journal of Polymer Science Vol. 37, Issue 10, Pages: 966-973(2019)
- Affiliations：
  
  a.Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  b.Shandong Huaju Polymer Material Co., Ltd., Binzhou 256500, China
- Author bio：
  
  aihuahe@iccas.ac.cn; ahhe@qust.edu.cn
- Funds：
- DOI：10.1007/s10118-019-2229-9
  CLC：
- Received：21 December 2018，
  
  Revised：2019-1-16，
  
  Accepted：21 January 2019，
  
  Online First：07 March 2019，
  
  Published：2019-10
- Accepted：
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Citation: Wang, H.; Wang, R. G.; Ma, Y. S.; Luan, B.; He, A. H. The influence of trans-1,4-poly(butadiene-, co,-isoprene) copolymer rubbers (TBIR) with different molecular weights on the NR/TBIR blends. Chinese J. Polym. Sci. 2019, 37, 966–973

Hao Wang, Ri-Guo Wang, Yun-Sheng Ma, et al. The Influence of Trans-1,4-poly(butadiene-co-isoprene) Copolymer Rubbers (TBIR) with Different Molecular Weights on the NR/TBIR Blends[J]. Chinese Journal of Polymer Science, 2019, 37(10): 966-973. DOI: 10.1007/s10118-019-2229-9.
Citation: Wang, H.; Wang, R. G.; Ma, Y. S.; Luan, B.; He, A. H. The influence of trans-1,4-poly(butadiene-, co,-isoprene) copolymer rubbers (TBIR) with different molecular weights on the NR/TBIR blends. Chinese J. Polym. Sci. 2019, 37, 966–973 DOI： 10.1007/s10118-019-2229-9.

Hao Wang, Ri-Guo Wang, Yun-Sheng Ma, et al. The Influence of Trans-1,4-poly(butadiene-co-isoprene) Copolymer Rubbers (TBIR) with Different Molecular Weights on the NR/TBIR Blends[J]. Chinese Journal of Polymer Science, 2019, 37(10): 966-973. DOI: 10.1007/s10118-019-2229-9. DOI：

摘要

Abstract

The molecular weight of a polymer is of prime importance and greatly influences the processing and mechanical properties of the polymer.

Trans

-1

4-poly(butadiene-

-isoprene) multi-block copolymer rubbers (TBIR) exhibit outstanding fatigue resistance

low heat build-up and good abrasion resistance

and are expected to be desirable candidate for high performance tire. Study on the influence of TBIR with different molecular weights on the structure and properties of TBIR and natural rubber (NR)/TBIR blends is essential to understand its contribution to the greatly improved dynamic properties of the rubber vulcanizates. TBIR with different molecular weights characterized by

H-NMR

C-NMR

GPC

and DSC were highly

trans

-1

4-copolymers with similar chain sequence distribution and crystalline

trans

-1

4-polyisoprene (TPI) blocks. The green strength and modulus of TBIR increased with the increasing molecular weight. The NR/TBIR compounds filled with 40 phr carbon black were chemically cured by sulfur for the preparation of NR/TBIR vulcanizates. The compatibility between NR and TBIR

filler distribution

crosslinking bond and density

and properties of NR/TBIR vulcanizates were studied. The NR/TBIR vulcanizates showed increasing tensile strength

hardness

modulus

rebound

abrasion resistance

and flexural fatigue properties with increasing molecular weight of TBIR. Furthermore

they presented significant improvement in flexural fatigue resistance when compared with that of NR vulcanizate. The contribution mechanism of TBIR on the NR/TBIR blends was discussed. The TBIR with a wide range of molecular weight are ideal rubbers for high performance tires.

关键词

Keywords

references

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The Influence of Trans-1,4-poly(butadiene-co-isoprene) Copolymer Rubbers (TBIR) with Different Molecular Weights on the NR/TBIR Blends

DOI：10.1007/s10118-019-2229-9

摘要

Abstract

关键词

Keywords

references