The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Strengthening blends of poly(lactic acid) and starch with methylenediphenyl diisocyanate
Abstract
Poly(lactic acid) (PLA) is a biodegradable polymer, but its applications are limited by its high cost. Blending granular starch with PLA reduces the cost, but the blend has poor strength properties. In this study, a 55/45 (w/w) mixture of PLA (weight‐average molecular weight = 120,000 Da) and dried wheat starch was blended thermally in an intensive mixer with or without a low level of methylenediphenyl diisocyanate (MDI). Blends with MDI had enhanced mechanical properties that could be explained by the in situ formation of a block copolymer acting as a compatibilizer. Scanning electron micrographs showed reduced interfacial tension between the two phases. The presence of MDI also enhanced the mechanical properties of the blend at temperatures above the glass‐transition temperature. Water uptakes by the PLA/starch blends with and without MDI did not differ. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 1761–1767, 2001
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Metadata
- Authors
- Wang, H., Sun, X., & Seib, P.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2001-09-05
- Volume
- 82
- Issue
- 7
- Pages
- 1761-1767
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W1999187510
- Cited by
- 279
- References
- 23
- FWCI
- 2.74
- Type
- journal article
- Language
- en
- Open access
- closed
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