http://www.cnr.it/ontology/cnr/individuo/prodotto/ID77995
Isothermal Crystallization of Isotactic Polypropylene Modified with Hydrocarbon Resin by Superfast Calorimetry (Contributo in atti di convegno)
- Type
- Label
- Isothermal Crystallization of Isotactic Polypropylene Modified with Hydrocarbon Resin by Superfast Calorimetry (Contributo in atti di convegno) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/marc.200600844 (literal)
- Alternative label
S. Cimmino, D. Duraccio, C. Silvestre and C. Schick (2006)
Isothermal Crystallization of Isotactic Polypropylene Modified with Hydrocarbon Resin by Superfast Calorimetry
in COST P12 Conference, Crystallisation and Structure Formation of Polymers, Mittelwihr Center, France
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- S. Cimmino, D. Duraccio, C. Silvestre and C. Schick (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- istituto di Chimica e tecnologia dei Polimeri (ICTP)-CNR (literal)
- Titolo
- Isothermal Crystallization of Isotactic Polypropylene Modified with Hydrocarbon Resin by Superfast Calorimetry (literal)
- Abstract
- The isothermal crystallization behavior and the structure and morphology of isotactic
poly(propylene) (iPP) and iPP/hydrogenated hydrocarbon resin (HR) 90/10 blend were analyzed.
To cover the entire temperature range, isothermal crystallizations were studied using
superfast calorimetry at a high cooling rate in the range 0 to 110 8C, and by conventional DSC
at a low cooling rate in the range 120 to 140 8C. Structural and morphological changes due to
the different thermal treatments were also analyzed. The complete crystallization curve
ranging from Tg to Tm showed bimodal crystallization behaviors for both iPP and iPP/HR
90/10 blend. This result is explained by taking into consideration the polymorph properties of
iPP. It is in fact assumed that the curve
from Tg to 60 8C referred mainly to the
crystallization kinetics of the iPP mesomorphic
form by homogeneous nucleation,
whereas the curve from 60 8C to Tm
mainly represented the crystallization
kinetic curve for the monoclinic a form
by heterogeneous nucleation. This hypothesis
is confirmed by the analysis of
the structures obtained using wide angle
X-ray experiments. Moreover, the addition
of HR to iPP causes a drastic reduction
in the crystallization rate of iPP in
both regions due to the diluent effect of
the miscible resin. (literal)
- Editore
- Prodotto di
- Autore CNR
Incoming links:
- Autore CNR di
- Prodotto
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Editore di