The cocrystallization behavior of binary blends of isotactic polypropylene and propylene-ethylene random copolymers

1999 ◽  
Vol 39 (11) ◽  
pp. 2117-2131 ◽  
Author(s):  
Man-Ho Kim ◽  
Rufina G. Alamo ◽  
J. S. Lin
Keyword(s):  
Isotactic Polypropylene ◽  
Random Copolymers ◽  
Binary Blends

Yield behavior of random copolymers of isotactic polypropylene

Polymer ◽  
2017 ◽  
Vol 129 ◽  
pp. 235-246 ◽  
Author(s):  
Finizia Auriemma ◽  
Claudio De Rosa ◽  
Rocco Di Girolamo ◽  
Anna Malafronte ◽  
Miriam Scoti ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Random Copolymers ◽  
Yield Behavior

Molecular View of Properties of Random Copolymers of Isotactic Polypropylene

2016 ◽  
pp. 45-92 ◽  
Author(s):  
Finizia Auriemma ◽  
Claudio De Rosa ◽  
Rocco Di Girolamo ◽  
Anna Malafronte ◽  
Miriam Scoti ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Random Copolymers

Morphology and properties in the binary blends of polypropylene and propylene–ethylene random copolymers

2018 ◽  
Vol 76 (6) ◽  
pp. 2851-2866 ◽  
Author(s):  
Yi Li ◽  
Yang Li ◽  
Changyu Han ◽  
Yancun Yu ◽  
Liguang Xiao
Keyword(s):  
Random Copolymers ◽  
Binary Blends

Morphology and thermal properties in the binary blends of poly(propylene-co-ethylene) copolymer and isotactic polypropylene with polyethylene

Polymer ◽  
2007 ◽  
Vol 48 (10) ◽  
pp. 2946-2957 ◽  
Author(s):  
Jean-Hong Chen ◽  
Jin-Cai Zhong ◽  
Yi-Hang Cai ◽  
Wen-Bin Su ◽  
Yao-Bin Yang
Keyword(s):  
Thermal Properties ◽  
Isotactic Polypropylene ◽  
Binary Blends ◽  
Ethylene Copolymer ◽  
Poly Propylene

scholarly journals High-Stress Shear-Induced Crystallization in Isotactic Polypropylene and Propylene/Ethylene Random Copolymers

2013 ◽  
Vol 46 (7) ◽  
pp. 2671-2680 ◽  
Author(s):  
Zhe Ma ◽  
Lucia Fernandez-Ballester ◽  
Dario Cavallo ◽  
Tim Gough ◽  
Gerrit W. M. Peters
Keyword(s):  
Isotactic Polypropylene ◽  
High Stress ◽  
Random Copolymers ◽  
Induced Crystallization

Miscibility of Isotactic Polypropylene/Ethylene−Propylene Random Copolymer Binary Blends

1999 ◽  
Vol 32 (10) ◽  
pp. 3227-3234 ◽  
Author(s):  
Motohiro Seki ◽  
Hiroshi Nakano ◽  
Shinichi Yamauchi ◽  
Jiro Suzuki ◽  
Yushu Matsushita
Keyword(s):  
Isotactic Polypropylene ◽  
Random Copolymer ◽  
Binary Blends ◽  
Ethylene Propylene

scholarly journals Systematic Investigation on the Structure-Property Relationship in Isotactic Polypropylene Films Processed via Cast Film Extrusion

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1636 ◽  
Author(s):  
Federico Di Sacco ◽  
Markus Gahleitner ◽  
Jingbo Wang ◽  
Giuseppe Portale
Keyword(s):  
Isotactic Polypropylene ◽  
Single Site ◽  
Random Copolymers ◽  
Minor Effect ◽  
Structure Property ◽  
Melt Temperature ◽  
Film Extrusion ◽  
Line Speed ◽  
Cast Film ◽  
Roll Temperature

The effect of cast film extrusion processing conditions, such as the chill-roll temperature, temperature of the melt, and line speed, on the structure of different isotactic polypropylene homo- and random copolymers has been investigated by means of Small- and Wide-Angle X-ray Scattering (SAXS and WAXS) and correlated to stiffness and haze. Stiffness and transparency have been found to be strongly dependent on the temperature of the chill-roll. Interestingly, line speed has been found to affect the total crystallinity when the chill-roll temperature is increased, while an overall minor effect of the melt temperature was found for all cast films. The polymer characteristics, defined by the catalyst nature and comonomer content, affect the final material performance, with the single-site catalyzed grades performing better in both mechanics and optics. Haze levels were found to correlate with the mesophase content rather than to α-crystallinity and to be dependent on the domain size for all grades. The remarkably low haze levels reached by the single-site grade with higher isotacticity can arise from high nucleation rate and orientational effects, which ultimately yield smaller and smoother scattering domains.

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