CaltechAUTHORS
  A Caltech Library Service

Characterization and non-isothermal crystallization behavior of biodegradable poly(ethylene sebacate)/SiO_2 nanocomposites

Mohsen-Nia, M. and Memarzadeh, M. R. (2013) Characterization and non-isothermal crystallization behavior of biodegradable poly(ethylene sebacate)/SiO_2 nanocomposites. Polymer Bulletin, 70 (8). pp. 2471-2491. ISSN 0170-0839. doi:10.1007/s00289-013-0967-3. https://resolver.caltech.edu/CaltechAUTHORS:20130912-134714921

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20130912-134714921

Abstract

Poly(ethylene sebacate) (PESeb) and PESeb/silica nanocomposites (PESeb/SiO_2) were prepared by in situ polymerization from the direct esterification of ethylene glycol with sebacic acid in the presence of proper amounts of silica nanoparticles. The non-isothermal crystallization behavior of PESeb/SiO_2 nanocomposites has been studied using different theoretical equations such as Avrami, Ozawa and combined Avrami and Ozawa equations. It is found that the addition of nanoparticles of SiO_2 influenced the mechanism of nucleation and the growth of PESeb crystallites. Also, the nanocomposites show a higher Avrami value than the neat PESeb, implying a more complex crystallization configuration. Moreover, the combined Avrami and Ozawa equation can successfully describe the crystallization model under the non-isothermal crystallization. The crystallization activation energies, E_a, calculated from ‘‘Kissinger’s equation’’ have shown that the synthesized PESeb/SiO_2 nanocomposites have lower energy than the neat PESeb, reflecting the much lower energy barrier for the rapid heterogeneous nucleation.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://link.springer.com/article/10.1007%2Fs00289-013-0967-3PublisherArticle
http://dx.doi.org/10.1007/s00289-013-0967-3DOIArticle
Additional Information:© 2013 Springer-Verlag Berlin Heidelberg. Received: 9 January 2013; Accepted: 22 April 2013; Published online: 4 June 2013.
Subject Keywords:Nanocomposite; Silica; Non-isothermal crystallization; Activation energy
Issue or Number:8
DOI:10.1007/s00289-013-0967-3
Record Number:CaltechAUTHORS:20130912-134714921
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130912-134714921
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41297
Collection:CaltechAUTHORS
Deposited By: John Wade
Deposited On:12 Sep 2013 21:52
Last Modified:10 Nov 2021 04:28

Repository Staff Only: item control page