The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Study of Hydrogen-Bonded Blend of Polylactide with Biodegradable Hyperbranched Poly(ester amide)
Abstract
Polylactide (PLA) was melt blended with a biodegradable hyperbranched poly(ester amide) (HBP) to enhance its flexibility and toughness without sacrificing comprehensive performance. The advantage of using HBP was due to its unique spherical shape, low melt viscosity, and abundant functional end groups together with its easy access. Rheological measurement showed that blending PLA with as little as 2.5% HBP resulted in a 40% reduction of melt viscosity. The glass transition temperature ( T g ) of PLA in the blends decreased slightly with the increase of HBP content, indicating partial miscibility which resulted from intermolecular interactions via H-bonding. The H-bonding involving C O of PLA with OH and NH of HBP was evidenced by FTIR analysis for the first time. The HBP component, as a heterogeneous nucleating agent, accelerated the crystallization rate of PLA. Remarkably, with the increase of HBP content, the elongation at break of PLA blends dramatically increased without severe loss in tensile strength, even the tensile strength increased within 10% content of HBP. The stress−strain curves and the SEM photos of impact-fractured surface showed the material changed from brittle to ductile failure with the addition of HBP. Reasonable interfacial adhesion via H-bonding and finely dispersed particulate structure of HBP in PLA were proposed to be responsible for the improved mechanical properties.
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Citations
Cites
Large-scale production, properties and commercial applications of polylactic acid polymers
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The frustrated structure of poly( l -lactide)
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Preparation and Properties of Plasticized Poly(lactic acid) Films
Ljungberg, N., & Wesslén, B. (2005) · Biomacromolecules · doi:10.1021/bm050098f · Cited by 331
Plasticization of Poly(l-lactide) with Poly(propylene glycol)
Kulinski, Z., Piorkowska, E., Gadzinowska, K., & Stasiak, M. (2006) · Biomacromolecules · doi:10.1021/bm060089m · Cited by 320
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Plasticization of semicrystalline poly(l-lactide) with poly(propylene glycol)
Piorkowska, E., Kulinski, Z., Galeski, A., & Masirek, R. (2006) · Polymer · doi:10.1016/j.polymer.2006.03.115 · Cited by 301
Morphology and Properties of Soy Protein and Polylactide Blends
Zhang, J., Jiang, L., Zhu, L., Jane, J.-L., & Mungara, P. (2006) · Biomacromolecules · doi:10.1021/bm050888p · Cited by 176
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Cited by
Poly(lactic acid) modifications
Rasal, R. M., Janorkar, A. V., & Hirt, D. E. (2010) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2009.12.003 · Cited by 2,204
Research progress in toughening modification of poly(lactic acid)
Liu, H., & Zhang, J. (2011) · Journal of Polymer Science Part B: Polymer Physics · doi:10.1002/polb.22283 · Cited by 767
Liu, H., Song, W., Chen, F., Guo, L., & Zhang, J. (2011) · Macromolecules · doi:10.1021/ma1026934 · Cited by 317
Toughening of polylactic acid: an overview of research progress
Krishnan, S., Pandey, P., Mohanty, S., & Nayak, S. K. (2016) · Polymer-Plastics Technology and Engineering · doi:10.1080/03602559.2015.1098698 · Cited by 147
Asadollahi, M., Gerashi, E., Zohrevand, M., Zarei, M., Sayedain, S. S., Alizadeh, R., Labbaf, S., & Atari, M. (2022) · Bioprinting · doi:10.1016/j.bprint.2022.e00228 · Cited by 59
Metadata
- Authors
- Lin, Y., Zhang, K.-Y., Dong, Z.-M., Dong, L.-S., & Li, Y.-S.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-21
- Volume
- 40
- Issue
- 17
- Pages
- 6257-6267
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2034714301
- Cited by
- 218
- References
- 9
- FWCI
- 4.66
- Type
- journal article
- Language
- en
- Open access
- closed
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