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Polyethylene-octene elastomer/starch blends: miscibility, morphology and mechanical properties

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Abstract

In this paper, polyethylene-octene elastomer (POE) and starch blends were studied. The compatibility beyween POE and starch was improved by adding polyethylene-octene/maleic anhydride graft copolymer (POE-MA) as compatibilizer. The compatibilization reaction was followed by FTIR spectra. The morphology of the blends was investigated using scanning electron microscopy (SEM). It was found that the size of the starch phase increased with an increasing content of starch for the blends. The addition of POE-MA can lower the size of the starch phase in the POE matrix, and this was due to the formation of an ester carbonyl function group by the chemical reaction between the anhydride groups and hydroxyl groups on starch. This was reflected in the mechanical properties of the blends, the addition of POE-MA compatibilizer can improve the mechanical properties of POE/starch blends. The thermogravimetric analysis of POE/starch blends was also conducted.

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Authors and Affiliations

  1. Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen(Zhongshan) University, Guangzhou, 510275, People’s Republic of China

    Xudong Chen, Rengui Wen & Zhengfu Liao

  2. School of Food Science, South China University of Technology, Guangzhou, 510641, People’s Republic of China

    Xiong Fu, Rengui Wen, Xiaowei He, Xiaoya Shang & Liansheng Yang

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  1. Xiong Fu
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  2. Xudong Chen
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  3. Rengui Wen
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  4. Xiaowei He
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  5. Xiaoya Shang
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  6. Zhengfu Liao
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  7. Liansheng Yang
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Correspondence to Xudong Chen.

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Fu, X., Chen, X., Wen, R. et al. Polyethylene-octene elastomer/starch blends: miscibility, morphology and mechanical properties. J Polym Res 14, 297–304 (2007). https://doi.org/10.1007/s10965-007-9110-1

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  • DOI: https://doi.org/10.1007/s10965-007-9110-1

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