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Preparation and characterization of biodegradable poly(butylene succinate)(PBS) foams

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Abstract

In order to obtain crosslinked poly(butylene succinate) (PBS) foams with a closed-cell structure, a commercial-grade PBS was first modified in the melt using two different branching agents to increase the melt viscosity. The rheological properties of the branched and crosslinked PBS were examined by varying the amount of the branching agents. The complex viscosity of the crosslinked PBS increased with increasing amount of the branching agent. However, it decreased with increasing frequency. When 2 phr of the branching agent was added to PBS, the storage modulus (G′) was higher than the loss modulus (G″) throughout the entire frequency range, showing that the addition of a branching agent increases the melt viscosity and elasticity of PBS effectively. Closed-cell PBS foams were prepared by mixing the chemical blowing agent with the crosslinked PBS. The effect of the foaming conditions such as temperature and time, and the amount of the crosssslinking agent on the structure of the expanded PBS foams were also investigated.

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Authors and Affiliations

  1. Department of Polymer Science and Engineering, Inha University, 402-751, Incheon, Korea

    Sang-Kyun Lim, Suk-Goo Jang, Seok-In Lee, Kwang-Hee Lee & In-Joo Chin

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  1. Sang-Kyun Lim
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  2. Suk-Goo Jang
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  3. Seok-In Lee
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  4. Kwang-Hee Lee
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  5. In-Joo Chin
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Correspondence to In-Joo Chin.

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Lim, SK., Jang, SG., Lee, SI. et al. Preparation and characterization of biodegradable poly(butylene succinate)(PBS) foams. Macromol. Res. 16, 218–223 (2008). https://doi.org/10.1007/BF03218856

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  • DOI: https://doi.org/10.1007/BF03218856

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