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Effects Of Ultrasound On The Conformational And Crystallization Behavior Of Isotactic Polypropylene Polymerized With Different Ziegler—Natta Catalyst

Shaohua Chen, Y. Liu, Tao Zeng, Nannan Duan, Wang Zhi, L. Wang, H. Wang, Chang’an Xu, J. Kang
Published 2015 · Materials Science

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Using different Ziegler—Natta catalysts, we have prepared two samples of isotactic polypropylene with similar molecular weight and average isotacticity, but different stereo-defect distributions. The influence of ultrasonic irradiation on the conformation and crystallization behavior of those samples were investigated by differential scanning calorimetry, wide-angle X-ray diffraction and Fourier transform infrared spectroscopy. The ultrasonic treatment induced a decrease in the degree of crystalline perfection and a wider distribution range of the crystalline perfection of polypropylene. Meanwhile, the crystal particles pack looser and the crystallite size decreased under the influence of ultrasonic irradiation. On the conformation aspect, the molecular movement in polypropylene became more intensive, the molecular entanglement was reduced when ultrasound was applied. Moreover, it was found that the uniformity of stereo-defect distribution also played important role in determining the conformation and crystallization behavior of polypropylene samples irradiated by ultrasound.
This paper references
10.1002/APP.41355
Effects of melt structure on crystallization behavior of isotactic polypropylene nucleated with α/β compounded nucleating agents
Q. Zhang (2015)
10.1016/S0079-6700(00)00046-0
Microstructure of polypropylene
V. Busico (2001)
10.1016/S0032-3861(97)10160-4
Isotactic polypropylene, β-phase: a study in frustration
D. Dorset (1998)
10.1007/S00289-011-0556-2
In situ FT-IR spectroscopy study on the conformational changes of quenched isotactic polypropylene during stepwise heating
Junchai Zhao (2011)
10.1007/s00289-013-1077-y
Investigation on the structure and crystallization behavior of controlled-rheology polypropylene with different stereo-defect distribution
J. Kang (2013)
10.1007/s10965-012-0070-8
Dynamic crystallization and melting behavior of β-nucleated isotactic polypropylene polymerized with different Ziegler-Natta catalysts
J. Kang (2013)
10.1021/MA071021H
Shear-Induced Conformational Ordering in the Melt of Isotactic Polypropylene
Haining An (2007)
10.1002/APP.40115
Comparative study on the crystallization behavior of β‐isotactic polypropylene nucleated with different β‐nucleation agents —effects of thermal conditions
J. Kang (2014)
10.1039/C4RA04231J
New understanding in the influence of melt structure and β-nucleating agents on the polymorphic behavior of isotactic polypropylene
J. Kang (2014)
10.1002/POLB.10309
Specificity and versatility of nucleating agents toward isotactic polypropylene crystal phases
C. Mathieu (2002)
10.1002/APP.10516
The effects of ultrasonic irradiation on the crystalline structures of nucleated polypropylene
Y. Cao (2002)
10.1080/00222348.2014.982481
Investigation on the Self-nucleation Behavior of Controlled-rheology Polypropylene
J. Kang (2015)
10.1007/s10965-012-0037-9
Influence of the stereo-defect distribution on the crystallization behavior of Ziegler-Natta isotactic polypropylene
J. Kang (2012)
10.1016/J.POLYMER.2014.02.014
Influence of ultrasonic treatment in PP/CNT composites using masterbatch dilution method
Jing Zhong (2014)
10.3144/EXPRESSPOLYMLETT.2010.15
The effect of molecular mass on the polymorphism and crystalline structure of isotactic polypropylene
Z. Horváth (2010)
10.1021/MA301595K
Conformational Ordering on the Growth Front of Isotactic Polypropylene Spherulite
Yuanhua Cong (2012)
10.1016/j.ultsonch.2009.05.005
Physical and chemical effects of ultrasound vibration on polymer melt in extrusion.
J. Chen (2010)
10.1002/APP.36357
Investigation of the Stereodefect Distribution and Conformational Behavior of Isotactic Polypropylene Polymerized with Different Ziegler-Natta Catalysts
J. Kang (2012)
10.1021/MA0710636
Competition between a, , and ? Polymorphs in a -Nucleated Metallocenic Isotactic Polypropylene
R. Krache (2007)
10.1002/MARC.1997.030180101
On the crystallization of γ-isotactic polypropylene: A high pressure study
S. Brückner (1997)
10.1002/PAT.3388
Morphology and mechanical behavior of isotactic polypropylene with different stereo‐defect distribution in injection molding
H. Peng (2014)
10.1002/APP.21166
Effect of vibration on crystal morphology and structure of isotactic polypropylene in nonisothermal crystallization
Q. Zheng (2004)
10.1007/s10965-013-0265-7
Studies on crystallization kinetics, microstructure and mechanical properties of different short carbon fiber reinforced polypropylene (SCF/PP) composites
Syed K. H. Gulrez (2013)
10.1007/s10965-014-0384-9
Dynamic crystallization and melting behavior of β-nucleated isotactic polypropylene with different melt structures
J. Kang (2014)
10.1007/s10965-014-0506-4
Isothermal crystallization behavior of β-nucleated isotactic polypropylene with different melt structures
J. Kang (2014)
10.1016/J.COMPSCITECH.2012.09.017
Injection moulded all-polypropylene composites composed of polypropylene fibre and polypropylene based thermoplastic elastomer
Á. Kmetty (2012)
10.1002/APP.30624
Preparation and characterization of polypropylene homocomposites: Exploiting polymorphism of PP homopolymer
J. Karger-Kocsis (2010)
10.1002/PAT.3210
Investigation on the dynamic crystallization and melting behavior of β‐nucleated isotactic polypropylene with different stereo‐defect distribution—the role of dual‐selective β‐nucleation agent
J. Kang (2014)
10.1002/PEN.11049
Influence of ultrasound on the processing and structure of polypropylene during extrusion
Y. Cao (2002)
10.1002/PAT.3249
Crystallization behavior and morphology of β‐nucleated isotactic polypropylene with different stereo‐defect distribution
Zhengfang Chen (2014)
10.1021/MA9804592
Energy Calculations for Isotactic Polypropylene: A Contribution To Clarify the β Crystalline Structure
D. Ferro (1998)
10.1016/J.PROGPOLYMSCI.2010.07.002
Self-reinforced polymeric materials: A review
Á. Kmetty (2010)
10.1002/PEN.20147
Effect of ultrasound on extrusion of PP/EPDM blends: Structure and mechanical properties
Yingzi Chen (2004)
10.1002/APP.29036
Morphology and mechanical properties of injection‐molded ultrahigh molecular weight polyethylene/polypropylene blends and comparison with compression molding
M. Xie (2008)
10.1021/MA062815J
Effect of Solubility and Nucleating Duality of N,N'-Dicyclohexyl-2,6-naphthalenedicarboxamide on the Supermolecular Structure of Isotactic Polypropylene
J. Varga (2007)
10.1016/0079-6700(91)90023-E
Polymorphism in isotactic polypropylene
S. Brückner (1991)
10.5254/1.3672119
ULTRASONIC AIDED EXTRUSION OF CNT-AND CNF-FILLED SBR COMPOUNDS AND PROPERTIES OF THEIR VULCANIZATES
Jaesun Choi (2012)
10.1039/C4RA03589E
Pore formation mechanism of β nucleated polypropylene stretched membranes
T. Wu (2014)
10.1007/s10965-014-0485-5
Understanding in the morphology and tensile behavior of isotactic polypropylene cast films with different stereo-defect distribution
J. Kang (2014)
10.1016/S0032-3861(98)00345-0
A study on the heat of fusion of β-polypropylene
J. Li (1999)
10.1002/PI.1332
Influence of the conformational order of glassy isotactic polypropylene on its crystallization and melting behaviour
L. Chen (2004)
10.1016/J.TCA.2014.11.011
Crystallization and melting behaviors of the β-nucleated isotactic polypropylene with different melt structures – The role of molecular weight
J. Kang (2015)
10.1039/C4RA06310D
Influence of lamellar structure on double yield behavior and pore size distribution in β nucleated polypropylene stretched membranes
T. Wu (2014)
10.1081/MB-120013089
β-MODIFICATION OF ISOTACTIC POLYPROPYLENE: PREPARATION, STRUCTURE, PROCESSING, PROPERTIES, AND APPLICATION
J. Varga (2002)
10.5254/RCT.13.88919
NATURAL RUBBER/CARBON NANOTUBE NANOCOMPOSITES PREPARED BY ULTRASONICALLY AIDED EXTRUSION
Jaesun Choi (2013)
10.1016/J.POLYMER.2006.12.013
Conformation transition and crystalline phase variation of long chain branched isotactic polypropylenes (LCB-iPP)
Zhiqiang Su (2007)
10.1002/APP.38699
Hydrogenated petroleum resin effect on the crystallization of isotactic polypropylene
Jian Kang (2013)
10.1021/MA1019686
Conformational Ordering in Growing Spherulites of Isotactic Polypropylene
Yuanhua Cong (2010)
10.1002/(SICI)1099-0488(199603)34:4<657::AID-POLB6>3.0.CO;2-N
Rules of supermolecular structure formation in sheared isotactic polypropylene melts
J. Varga (1996)
10.1002/PAT.3416
Effects of β‐nucleating agent and crystallization conditions on the crystallization behavior and polymorphic composition of isotactic polypropylene/multi‐walled carbon nanotubes composites
J. Kang (2015)
10.1016/J.POLYMER.2009.11.018
Effects of ultrasound on the conformation and crystallization behavior of isotactic polypropylene and β-isotactic polypropylene
J. Kang (2010)
10.1021/JA01611A109
CRYSTALLINE HIGH POLYMERS OF α-OLEFINS
G. Natta (1955)
10.1016/J.EURPOLYMJ.2011.11.023
Polymerization control and fast characterization of the stereo-defect distribution of heterogeneous Ziegler–Natta isotactic polypropylene
J. Kang (2012)
10.1002/POLB.21325
Influence of stereoerrors on the formation of helices during early stage crystallization of isotactic polyproyplene
X. Chen (2007)
10.1002/APP.26292
Processing of mica/epoxy nanocomposites by ultrasound mixing
A. Boukerrou (2007)
10.1039/C3RA45362F
Visible light excitable fluorescence probe and its functionalized Merrifield polymer: selective sensing and removal of arsenate from real samples
A. Banerjee (2014)
10.1007/S101890070031
What can polymer crystal structure tell about polymer crystallization processes?
B. Lotz (2000)
10.1002/PEN.21135
Ultrasound aided extrusion process for preparation of polyolefin--clay nanocomposites
A. Isayev (2008)
10.1007/s10973-014-4338-6
Investigation on the crystallization behavior and polymorphic composition of isotactic polypropylene/multi-walled carbon nanotube composites nucleated with β-nucleating agent
J. Kang (2014)
10.1002/APP.38984
Investigation of the crystallization behavior of isotactic polypropylene polymerized with different Ziegler‐Natta catalysts
J. Kang (2013)
10.1016/J.POLYMER.2005.11.052
The influence of stem conformation on the crystallization of isotactic polypropylene
J. Zhou (2006)



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