The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Rheology and extrusion foaming of chain‐branched poly(lactic acid)
Open accessAbstract
In this study, the effect of macromolecular chain‐branching on poly(lactic acid) (PLA) rheology, crystallization, and extrusion foaming was investigated. Two PLA grades, an amorphous and a semi‐crystalline one, were branched using a multifunctional styrene‐acrylic‐epoxy copolymer. The branching of PLA and its foaming were achieved in one‐step extrusion process. Carbon dioxide (CO 2 ), in concentration up to 9%, was used as expansion agent to obtain foams from the two PLA branched using chain‐extender contents up to 2%. The foams were investigated with respect to their shear and elongational behavior, crystallinity, morphology, and density. The addition of the chain‐extender led to an increase in complex viscosity, elasticity, elongational viscosity, and in the manifestation of the strain‐hardening phenomena. Low‐density foams were obtained at 5–9% CO 2 for semi‐crystalline PLA and only at 9% CO 2 in the case of the amorphous PLA. Differences in foaming behavior were attributed to crystallites formation during the foaming process. The rheological and structural changes associated with PLA chain‐extension lowered the achieved crystallinity but slightly improved the foamability at low CO 2 content. POLYM. ENG. SCI., 2010. © 2009 Society of Plastics Engineers
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Cites
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Cited by
Poly(lactic acid) crystallization
Saeidlou, S., Huneault, M. A., Li, H., & Park, C. B. (2012) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2012.07.005 · Cited by 1,606
Self-citationAl-Itry, R., Lamnawar, K., & Maazouz, A. (2012) · Polymer Degradation and Stability · doi:10.1016/j.polymdegradstab.2012.06.028 · Cited by 906
From Lactic Acid to Poly(lactic acid) (PLA): Characterization and Analysis of PLA and Its Precursors
Inkinen, S., Hakkarainen, M., Albertsson, A.-C., & Södergård, A. (2011) · Biomacromolecules · doi:10.1021/bm101302t · Cited by 710
Nofar, M., & Park, C. B. (2014) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2014.04.001 · Cited by 531
Porous Hydrogels: Present Challenges and Future Opportunities
Foudazi, R., Zowada, R., Manas-Zloczower, I., & Feke, D. L. (2023) · Langmuir · doi:10.1021/acs.langmuir.2c02253 · Cited by 373
Metadata
- Authors
- Mihai, M., Huneault, M. A., & Favis, B. D.
- Venue
- Polymer Engineering & Science
- Publisher
- Wiley
- Published
- 2009-12-28
- Volume
- 50
- Issue
- 3
- Pages
- 629-642
- ISSN
- 0032-3888 (ISSN-L)
- 1548-2634
- OpenAlex
- W2158707982
- Cited by
- 264
- References
- 33
- FWCI
- 4.74
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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