DOI: 10.1002/app.1859. Nonisothermal crystallization of isotactic polypropylene blended with poly(α‐pinene). I. Bulk crystallization

Nonisothermal crystallization of isotactic polypropylene blended with poly(α‐pinene). I. Bulk crystallization

10.1002/app.1859

Crossref journal-article

Wiley

Journal of Applied Polymer Science (311)

Abstract

AbstractThe influence of a natural terpene resin, poly(α‐pinene) (PαP), on the nonisothermal crystallization process of isotactic polypropylene (iPP) was investigated. The solidification process strongly depends on cooling rate, composition, and miscibility of the system. For the blends containing PαP up to 30 wt %, the overall nonisothermal crystallization rate is depressed with respect to plain iPP. This is probably the result of the diluting effect of the polyterpene because the two components are miscible. The 50/50 blend presents, instead, two amorphous phases: an iPP‐rich phase and a PαP‐rich phase. For this composition, solidification starts at temperatures higher than those for plain iPP and blends with lower PαP content, given that the diluting effect of PαP in the iPP‐rich phase is counterweighted by an increased number of nuclei that originate from the polyterpene‐rich phase domains. PαP also influences the morphology of iPP spherulites, which are spherical in plain iPP and become more irregular with increasing PαP content. The number and dimension of iPP spherulites depend on blend composition and miscibility of the components. Moreover, the nonisothermal crystallization kinetics of iPP/PαP blends was analyzed with the Ozawa equation. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 358–367, 2001

Bibliography

Di Lorenzo, M. L., Cimmino, S., & Silvestre, C. (2001). Nonisothermal crystallization of isotactic polypropylene blended with poly(Î±âpinene). I. Bulk crystallization. Journal of Applied Polymer Science, 82(2), 358â367. Portico.

Authors 3

Maria Laura Di Lorenzo (first)
Sossio Cimmino (additional)
Clara Silvestre (additional)

References 36 Referenced 28

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Dates

Type	When
Created	20 years, 9 months ago (Oct. 28, 2004, 10:50 a.m.)
Deposited	1 year, 9 months ago (Oct. 31, 2023, 8:27 a.m.)
Indexed	1 year, 9 months ago (Nov. 1, 2023, 8:10 a.m.)
Issued	24 years ago (July 30, 2001)
Published	24 years ago (July 30, 2001)
Published Online	24 years ago (July 30, 2001)
Published Print	23 years, 10 months ago (Oct. 10, 2001)

Funders 0

None

BibTeX

@article{Di_Lorenzo_2001, title={Nonisothermal crystallization of isotactic polypropylene blended with poly(α‐pinene). I. Bulk crystallization}, volume={82}, ISSN={1097-4628}, url={http://dx.doi.org/10.1002/app.1859}, DOI={10.1002/app.1859}, number={2}, journal={Journal of Applied Polymer Science}, publisher={Wiley}, author={Di Lorenzo, Maria Laura and Cimmino, Sossio and Silvestre, Clara}, year={2001}, month=jul, pages={358–367} }

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