Citation: ZHANG Hao, YU Qizhou, ZHANG Xinhui, LIU Jingsheng. Properties of Branched Structure Nd-base Polybutadiene Rubber with Narrow Relative Molecular Mass Distribution[J]. Chinese Journal of Applied Chemistry, ;2016, 33(12): 1408-1414. doi: 10.11944/j.issn.1000-0518.2016.12.160399 shu

Properties of Branched Structure Nd-base Polybutadiene Rubber with Narrow Relative Molecular Mass Distribution

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a National Engineering Laboratory for Wheat and Corn Deep Processing, College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China;
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b Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Corresponding author: LIU Jingsheng,
Received Date: 30 September 2016
Available Online: 24 October 2016
Fund Project:

The structure and properties of polybutadiene rubber(BR) with narrow molecular mass distribution synthesized by rare earth Nd catalysts(NMWD-NdBR) were studied and compared with those of the sample with a wider molecular weight distribution(WMWD-NdBR). The results show that NMWD-NdBR gets a steady rheological behavior under the same rotation rate. The scorch time and the optimum curing point of NMWD-NdBR are similar to those of WMWD-NdBR, but the minimum torque(M_L), maximum torque(M_H) and mechanical properties of NMWD-NdBR are slightly better than those of WMWD-NdBR. The data of rubber processing analyzer(RPA) show that the Payne effect of NMWD-NdBR are similar to those of WMWD-NdBR, and the hysteresis loss(tanδ) of NMWD-NdBR are superior to those of WMWD-NdBR. The results of tanδ data are in good agreement with those of carbon black dispersion, heat build-up, permanent set, as well as rolling resistance.
- narrow molecular mass distribution,
- long chain branching,
- Nd-based butadiene rubber,
- payne effect,
- hysteresis loss
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沈阳化工大学材料科学与工程学院沈阳 110142