Citation: Lin Gu, Qing-yun Wu, Hai-bin Yu. Toughening of Poly(propylene carbonate) by Carbon Dioxide Copolymer Poly(urethane-amine) via Hydrogen Bonding Interaction[J]. Chinese Journal of Polymer Science, ;2015, 33(6): 838-849. doi: 10.1007/s10118-015-1633-z shu

Toughening of Poly(propylene carbonate) by Carbon Dioxide Copolymer Poly(urethane-amine) via Hydrogen Bonding Interaction

1.
Key Laboratory of Marine New Materials and Application Technology, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
2.
Department of Polymer Science and Engineering, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China

Received Date: 28 September 2014
Revised Date: 11 October 2014

A carbon dioxide copolymer poly(urethane-amine) (PUA) was blended with poly(propylene carbonate) (PPC) in order to improve the toughness and flexibility of PPC without sacrificing other mechanical properties. Compared with pure PPC, the PPC/PUA blend with 5 wt% PUA loading showed a 400% increase in elongation at break, whilst the corresponding yielding strength remained as high as 33.5 MPa and Young's modulus showed slightly decrease. The intermolecular hydrogen bonding interaction in PPC/PUA blends was comfirmed by FTIR, 2D IR and XPS spectra analysis, and finely dispersed particulate structure of PUA in PPC was observed in the SEM images, which provided good evidence for the toughening mechanism of PPC.
- Carbon dioxide copolymer,
- Blend,
- Toughening,
- Poly(propylene carbonate),
- Poly(urethane-amine)
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沈阳化工大学材料科学与工程学院沈阳 110142