• français
    • English
    English
  • Ouvrir une session
Aide
Voir le document 
  •   Accueil de SAM
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • Voir le document
  • Accueil de SAM
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • Voir le document
JavaScript is disabled for your browser. Some features of this site may not work without it.

Molecular weight influence on shape memory effect of shape memory polymer blend (poly(caprolactone)/ styrene‐butadiene‐styrene )

Article dans une revue avec comité de lecture
Auteur
BEN ABDALLAH, Abir
GAMAOUN, Fehmi
81761 National Engineering School of Sousse / Ecole Nationale d'Ingénieurs de Sousse [ENISo]
KALLEL, Achraf
307373 Pôle Universitaire Léonard de Vinci [PULV]
ccTCHARKHTCHI, Abbas
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/19937
DOI
10.1002/app.49761
Date
2021
Journal
Journal of Applied Polymer Science

Résumé

The shape memory effect (SME) does not only concern the macroscopic structure. It concerns also the polymer structure at morphological, macromolecular, and molecular scales. This effect may depend on different physicochemical properties like morphology heterogeneity, chain rigidity, steric hindrance, chain polarity, free volume, cross-linking or entanglement density, molecular shape and weight, and so on. Hence, finding the relationship between the SME and these properties is very important. This can help to obtain the knowledge about the phenomenon origin and mechanism. One of the basic polymer properties, which can have direct SME, may be the molecular weight (Mw). The question here is: If the Mw of a shape memory polymer (SMP) changes, for different reasons like degradation, what will be the effect of this change on its SME. In order to answer to this question, the investigation is focused on an SMP blend of 40% poly(ɛ-caprolactone) (PCL) and 60% styrene-butadiene-styrene (SBS). Then, enzymatic hydrolysis is performed on this blend to change its Mw. It is shown that this change is only related to the variation in the Mw of PCL. After that, different samples with a distinct average Mw are prepared and characterized by various experimental methods. Shape memory tests are performed on these blends, and the recovery rate (Rr) for each of them is determined. It is found that when Mw of PCL decreases, its degree of crystallinity, its glass transition, and its melting temperatures, corresponding to the PCL phase, increase. However, the elongation at break of the blend declines with the reduction in Mw. The tests show that the alteration in the blend's Mw influences its SME. Indeed, Rr of the (PCL/SBS) mixture drops with the decrease in Mw of PCL.

Fichier(s) constituant cette publication

Nom:
PIMM_JAPS_2021_ BEN_ABDALLAH.pdf
Taille:
1.892Mo
Format:
PDF
Description:
Article
Fin d'embargo:
2021-08-01
Voir/Ouvrir

Cette publication figure dans le(s) laboratoire(s) suivant(s)

  • Autres équipes
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Enzymatic Hydrolysis of Poly (Caprolactone) and its Blend with Styrene–Butadiene–Styrene (40% PCL/60% SBS) 
    Article dans une revue avec comité de lecture
    BEN ABDALLAH, Abir; KALLEL, Achraf; GAMAOUN, Fehmi; ccTCHARKHTCHI, Abbas (Springer Verlag, 2019)
    In this study, we aim to evaluate the effect of enzymatic hydrolysis on aliphatic polyester and on its shape memory blend. Therefore, the hydrolysis of poly (ɛ-caprolactone) (PCL) and of its shape memory polymer (SMP) blend ...
  • Driving force for shape memory effect of polymers 
    Article dans une revue avec comité de lecture
    KALLEL, Achraf; BEN ABDALLAH, Abir; GAMAOUN, Fehmi; FARZANEH, Sedigheh; BENDALY, Hachmi; ccTCHARKHTCHI, Abbas; ccFITOUSSI, Joseph (The Polymer Society, 2021)
    In this study, we aim to evaluate the shape memory effect of a Poly (Caprolactone) (PCL) (40%) and a Styrene-Butadiene-Styrene (SBS) (60%) blend. Shape memory cycle tests are performed at different temperatures to detect ...
  • Modeling of viscoelastic behavior of a shape memory polymer blend 
    Article dans une revue avec comité de lecture
    BEN ABDALLAH, Abir; KALLEL, Achraf; HASSINE, Tarek; GAMAOUN, Fehmi; ccTCHARKHTCHI, Abbas (Wiley, 2021-11-03)
    Shape memory effect (SME) of polymers is a property that concerns both, macroscopic and microscopic changes. The variation of internal polymer properties such, as molecular weight (Mw), rigidity, and viscoelasticity could ...
  • Driving force for shape memory effect of polymers 
    Article dans une revue avec comité de lecture
    KALLEL, Achraf; ABDALLAH, Abir Ben; GAMAOUN, Fehmi; FARZANEH, Sedigheh; BENDALY, Hachmi; ccTCHARKHTCHI, Abbas; ccFITOUSSI, Joseph (Springer Science and Business Media LLC, 2021)
    In this study, we aim to evaluate the shape memory effect of a Poly (Caprolactone) (PCL) (40%) and a Styrene-Butadiene-Styrene (SBS) (60%) blend. Shape memory cycle tests are performed at different temperatures to detect ...
  • Non-isothermal crystallization kinetics and its effect on the mechanical properties of homopolymer isotactic polypropylene 
    Article dans une revue avec comité de lecture
    ccNOUIRA, Samia; HASSINE, T.; ccSHIRINBAYAN, Mohammadali; GAMAOUN, Fehmi; ccTCHARKHTCHI, Abbas; ccFITOUSSI, Joseph (Springer Science and Business Media LLC, 2021)
    The non-isothermal crystallization of the isotactic Polypropylene (iPP) was studied using differential scanning calorimetry and polarizing optical microscopy. Jeziorny’s model and Ozawa’s theoretical approaches were applied ...

Parcourir

Tout SAMLaboratoiresAuteursDates de publicationCampus/InstitutsCe LaboratoireAuteursDates de publicationCampus/Instituts

Lettre Diffuser la Science

Dernière lettreVoir plus

Statistiques de consultation

Publications les plus consultéesStatistiques par paysAuteurs les plus consultés

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales