• 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.

Structure and molecular dynamics of multilayered polycarbonate/polystyrene films.

Article dans une revue avec comité de lecture
Auteur
WALCZAK, M
CIESIELSKI, W
GALESKI, A
POTRZEBOWSKI, M.J.
HILTNER, A
BAER, Eric
ccREGNIER, Gilles
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/6799
DOI
10.1002/app.36567
Date
2012
Journal
Journal of Applied Polymer Science

Résumé

Multilayered film polycarbonate/polystyrene (PC/PS) comprising 257 layers with total thickness 125 m was made by coextrusion process. The nominal thickness of PC layers was 680 nm, and the nominal thickness of PS layers was 290 nm. Additionally the control samples of PC and PS with the thickness of 125 m were coextruded in the same way. There was reasonably good correlation between the PC and PS layers real thickness as measured by AFM and the estimated thickness determined from the processing parameters. Significant shift of glass transition temperature is observed in multilayer film: for PS component towards higher temperature while PC still being glassy and for PC towards lower temperature while PS being in rubbery phase. In order to investigate the amplitude and geometry of fast segmental motions, the LG-CP NMR technique under fast magic-angle spinning was used. 2D 13C – 1H LG-CP spectra of PC, PS and PC/PS 70/30 were recorded at various temperatures. Cross sections of aromatic carbons spectra show us the influence of PC on PS and vice versa. It gives us also the information about PS and PC segmental motion as a function of temperature: above the glass transition temperature of PS, the PC component of a multilayer film, although still being in glassy state, becomes more flexible.

Fichier(s) constituant cette publication

Nom:
PIMM_JAPS_1_2012-regnier.pdf
Taille:
1.141Mo
Format:
PDF
Description:
Article publié
Voir/Ouvrir

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

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

Documents liés

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

  • Prediction and sensitivity analysis of bubble dissolution time in 3D selective laser sintering using ensemble decision trees 
    Article dans une revue avec comité de lecture
    LY, Haibang; LE, Tien Thinh; LE, Vuongminh; PHAM, Binh Thai; ccDAL, Morgan; ccREGNIER, Gilles; ccMONTEIRO, Eric (MDPI, 2019)
    The presence of defects like gas bubble in fabricated parts is inherent in the selective laser sintering process and the prediction of bubble shrinkage dynamics is crucial. In this paper, two artificial intelligence (AI) ...
  • Limitations of simple flow models for the simulation of nanoimprint 
    Article dans une revue avec comité de lecture
    TEYSSEDRE, Hubert; GILORMINI, Pierre; ccREGNIER, Gilles (2013)
    A quick evaluation of the forces involved in nanoimprint would be very helpful in the prevention of mold deflection. Unfortunately, it is shown here that assuming simplified flows may lead to quite incorrect evaluations ...
  • Shear-strain step response in linear regime of dilute suspensions of naturally bent carbon nanotubes 
    Article dans une revue avec comité de lecture
    CRUZ, Camilo; ILLOUL, Lounès; ccREGNIER, Gilles; ccCHINESTA SORIA, Francisco (Wiley, 2012)
    Impressive enhancements of the storage modulus have been documented when low volume fractions of single wall carbon nanotubes (SWNTs) are added to a Newtonian solvent for obtaining dilute suspensions. The intrinsic bending ...
  • Experimental and numerical analysis of the selective laser sintering (SLS) of PA12 and PEKK semi-crystalline polymers 
    Article dans une revue avec comité de lecture
    ROUCHAUSSE, Yann; PEYRE, Patrice; DEFAUCHY, Denis; ccREGNIER, Gilles (Elsevier, 2015)
    A dual experimental-numerical approach was carried out to estimate thermal cycles and resulting fusion depths obtained during the selective laser sintering (SLS) of two polymers: PA12 and PEKK. The validation of thermal ...
  • Review on the Brownian Dynamics Simulation of Bead-Rod-Spring Models Encountered in Computational Rheology 
    Article dans une revue avec comité de lecture
    CRUZ, Camilo; ccREGNIER, Gilles; ccCHINESTA SORIA, Francisco (Springer Verlag, 2012)
    Kinetic theory is a mathematical framework intended to relate directly the most relevant characteristics of the molecular structure to the rheological behavior of the bulk system. In other words, kinetic theory is a ...

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