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Effects Of Ultrasound On The Conformation And Crystallization Behavior Of Isotactic Polypropylene And β-isotactic Polypropylene

J. Kang, J. Chen, Ya Cao, H. Li
Published 2010 · Materials Science

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Abstract The effects of ultrasonic irradiation on conformation and crystalline structure of isotactic polypropylene (iPP) and β -isotactic polypropylene ( β -iPP) were studied by means of Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD). The results demonstrate that ultrasonic irradiation decreases the helical conformation order and changes the crystalline structures: for iPP, T m and T onset decrease, T m  −  T onset becomes larger; for β -iPP, the β c , (1 − λ) β and k β increase, the intensities of α (040) plane and α (130) plane in WAXD profiles decrease evidently. For both iPP and β -iPP, the crystallinity decreases, d -spacing increases, the crystallite size L decreases and ultrasound shows a selective effect on the growth of β -crystal. Furthermore, DSC and WAXD were employed to observe the effect of ultrasound on the “melting memory effect” of β -iPP. The results indicate that ultrasonic irradiation destructs the existing “locally ordered structure” in β -iPP melt, as a result greatly inhibits the βα-recrystallization of β -iPP samples during heating.
This paper references
10.5254/1.3538350
Ultrasound Devulcanization of Sulfur Vulcanized SBR: Crosslink Density and Molecular Mobility
V. Levin (1996)
10.1016/0014-3057(76)90088-4
Regularity bands in the i.r. spectra of C3H6C3D6 copolymers
Yu.V. Kissin (1976)
10.1016/J.POLYMER.2004.06.044
Crystallization And Impact Energy Of Polypropylene/Caco3 Nanocomposites With Nonionic Modifier
Q. Zhang (2004)
10.1016/S0032-3861(01)00729-7
Real time in situ X-ray diffraction studies on the melting memory effect in the crystallization of β-isotactic polypropylene
Kyung-mox Cho (2002)
10.1002/ADV.1990.060100104
Effect of oscillations during extrusion on rheology and mechanical properties of polymers
A. Isayev (1990)
10.1002/MACP.1968.021180120
Infrared spectra and regular sequence lengths in isotactic polymer chains
M. Kobayashi (1968)
10.1016/0032-3861(96)00370-9
Structure and morphology of poly(propylenes): a molecular analysis
B. Lotz (1996)
10.1016/J.POLYMER.2007.04.027
Nanoclay-tethered shape memory polyurethane nanocomposites
F. Cao (2007)
10.1063/1.1734985
Spherulitic Crystallization in Polypropylene
F. J. Padden (1959)
10.1016/0032-3861(96)81599-0
Tensile properties of highly syndiotactic polypropylene
Hiroki Uehara (1996)
10.1007/BF01412407
Estimation ofσe onα- andβ-form polypropylene
Y. Fujiwara (1987)
10.1016/S0032-3861(98)00345-0
A study on the heat of fusion of β-polypropylene
J. Li (1999)
10.1016/J.POLYMER.2009.04.052
Halloysite nanotubes as a novel β-nucleating agent for isotactic polypropylene
M. Liu (2009)
10.1021/MA062784S
Deconvolution analyses of differential scanning calorimetry profiles of β-crystallized polypropylenes with synchronized X-ray measurements
Y. Yamamoto (2007)
10.1002/(SICI)1097-4628(19960131)59:5<803::AID-APP7>3.0.CO;2-#
Ultrasonic devulcanization of rubber vulcanizates. I. Process model
A. Isayev (1996)
10.1021/JP012165F
In Situ FTIR Spectroscopic Study of the Conformational Change of Isotactic Polypropylene during the Crystallization Process
X. Zhu (2001)
10.1002/PEN.760302404
Flow of thermoplastics in an annular die under parallel oscillations
C. M. Wong (1990)
10.1002/APMC.1986.051420115
Kristallisation, umkristallisation und schmelzen der β‐modifikation des polypropylens
J. Varga (1986)
10.1002/(SICI)1521-3927(20000401)21:7<354::AID-MARC354>3.0.CO;2-B
In situ FTIR spectroscopic study of the regularity bands and partial-order melts of isotactic poly(propylene)
X. Zhu (2000)
10.1081/MB-120013089
β-MODIFICATION OF ISOTACTIC POLYPROPYLENE: PREPARATION, STRUCTURE, PROCESSING, PROPERTIES, AND APPLICATION
J. Varga (2002)
10.1016/J.POLYMER.2008.11.046
Thermal, spectroscopy, and morphological studies on polymorphic crystals in poly(heptamethylene terephthalate)
K. C. Yen (2009)
10.1002/1521-3935(20010401)202:7<1109::AID-MACP1109>3.0.CO;2-1
In Situ FTIR Spectroscopy Study on the Melting Process of Isotactic Poly(propylene)
X. Zhu (2001)
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)
10.1007/BF02352075
Das Doppelschmelzverhalten derβ-Phase des isotaktischen Polypropylens
Y. Fujiwara (1975)
10.1007/BF00652344
Memory effects in isothermal crystallization II. Isotactic polypropylene
G. Alfonso (1995)
10.1007/BF00652372
Memory effects in isothermal crystallization. I. Theory
A. Ziabicki (1994)
10.1016/J.POLYMER.2006.12.013
Conformation transition and crystalline phase variation of long chain branched isotactic polypropylenes (LCB-iPP)
Z. Su (2007)
10.1007/S003960000449
Influence of the order of polymer melt on the crystallization behavior: I. Double melting endotherms of isotactic polypropylene
X. Zhu (2001)
10.1002/PEN.11049
Influence of ultrasound on the processing and structure of polypropylene during extrusion
Y. Cao (2002)
10.1002/APP.10516
The effects of ultrasonic irradiation on the crystalline structures of nucleated polypropylene
Y. Cao (2002)
10.1016/J.POLYMER.2008.04.012
A highly active novel -nucleating agent for isotactic polypropylene
Shicheng Zhao (2008)
10.1016/0014-3057(72)90131-0
The stereoregularity of polypropylene from i.r. and nmr data
Yu.V. Kissin (1972)
10.1016/J.POLYMER.2008.10.052
Ultrasound assisted twin screw extrusion of polymer–nanocomposites containing carbon nanotubes
A. Isayev (2009)
10.1016/S0032-3861(03)00305-7
Memory effect of locally ordered α-phase in the melting and phase transformation behavior of β-isotactic polypropylene
K. Cho (2003)
10.1016/J.POLYMER.2006.09.005
Variations of regular conformation structures in melt of syndiotactic polypropylene
Chunxiao Zheng (2006)
10.1002/APP.10811
Activity of a β-nucleating agent for isotactic polypropylene and its influence on polymorphic transitions
C. Marco (2002)
10.1007/BF01913897
Melting memory effect of the β-modification of polypropylene
J. Varga (1986)
10.1016/S0032-3861(97)10147-1
α and β phases of isotactic polypropylene: a case of growth kinetics `phase reentrency' in polymer crystallization
B. Lotz (1998)
10.1016/J.POLYMER.2004.12.062
Effect of in situ prepared silica nano-particles on non-isothermal crystallization of polypropylene
S. Jain (2005)



This paper is referenced by
10.1007/s00396-015-3605-9
Understanding the effects of nucleating agent concentration on the polymorphic behavior of β-nucleated isotactic polypropylene with different melt structures
J. Kang (2015)
10.1002/PEN.24149
The effects of sonication time and frequencies on degradation, crystallization behavior, and mechanical properties of polypropylene
Y. Liu (2015)
10.3390/polym11111777
Crystalline Modification of Isotactic Polypropylene with a Rare Earth Nucleating Agent Based on Ultrasonic Vibration
D. Li (2019)
10.1201/b11012-4
Aspects of ultrasound and materials science
Andrew Cobley (2011)
10.3390/ma11010144
Effects of Polypropylene Orientation on Mechanical and Heat Seal Properties of Polymer-Aluminum-Polymer Composite Films for Pouch Lithium-Ion Batteries
Fangxinyu Zeng (2018)
10.1002/APP.38984
Investigation of the crystallization behavior of isotactic polypropylene polymerized with different Ziegler‐Natta catalysts
J. Kang (2013)
10.1007/s10965-012-0037-9
Influence of the stereo-defect distribution on the crystallization behavior of Ziegler-Natta isotactic polypropylene
J. Kang (2012)
10.3390/polym11030433
Influences of Hyperbranched Polyester Modification on the Crystallization Kinetics of Isotactic Polypropylene/Graphene Oxide Composites
Zengheng Hao (2019)
10.1007/s10965-017-1358-5
Exploring the roles of molecular structure on the β-crystallization of polypropylene random copolymer
H. Zheng (2017)
10.3390/polym9080322
Preparation of Nanocomposites of Poly(ε-caprolactone) and Multi-Walled Carbon Nanotubes by Ultrasound Micro-Molding. Influence of Nanotubes on Melting and Crystallization
Cristian Olmo (2017)
10.1016/J.EURPOLYMJ.2014.12.016
Fourier Transform Infrared Spectroscopy study of polymorphism in propylene-co-1-pentene copolymers: Trigonal form identification
Javier Arranz-Andrés (2015)
10.1002/PEN.25086
Effects of stereo‐defect distribution on the crystallization and polymorphic behavior of β‐nucleated isotactic polypropylene/graphene oxide composites with different melt structures
X. Jiang (2019)
10.1002/APP.38699
Hydrogenated petroleum resin effect on the crystallization of isotactic polypropylene
Jian Kang (2013)
10.1134/S0965545X15050053
Effects of ultrasound on the conformational and crystallization behavior of isotactic polypropylene polymerized with different Ziegler—Natta catalyst
Shaohua Chen (2015)
10.1007/s10965-014-0584-3
Preparation of micro-molded exfoliated clay nanocomposites by means of ultrasonic technology
A. Díaz (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.APSUSC.2018.07.177
Influences of ultrasonic vibration on morphology and photoelectric properties of F-doped SnO2 thin films during laser annealing
B. Li (2018)
10.1016/J.POLYMER.2014.02.031
Quantification of highly oriented nucleating agent in PP-R by IR-microscopy, polarised light microscopy, differential scanning calorimetry and nuclear magnetic resonance spectroscopy
T. Schuster (2014)
10.1016/j.ultsonch.2013.07.007
Effects of ultrasonic vibration on the micro-molding processing of polylactide.
Matías Sacristán (2014)
10.1002/pat.4913
Influence of surface modified graphene oxide on the mechanical performance and curing kinetics of epoxy resin
L. Li (2020)
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)
10.1016/J.RADPHYSCHEM.2010.07.047
Changes to the chemical structure of isotactic-polypropylene induced by ion-beam irradiation
T. Oka (2011)
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)
10.1080/1539445X.2016.1176044
Effects of stereo-defect distribution and molecular mass in the non-isothermal crystallization behavior of β-nucleated isotactic polypropylene
Huiyang Yu (2016)
10.1007/S10853-011-5764-5
Morphological comparison of isotactic polypropylene molded by water-assisted and conventional injection molding
Xianhu Liu (2011)
10.3139/120.110722
The memory effect in polyolefinic products: A tool for confirming the steam sterilization process
Kamila Bajer (2015)
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/J.MATDES.2012.10.054
Effects of cavity surface temperature on mechanical properties of specimens with and without a weld line in rapid heat cycle molding
G. Wang (2013)
10.1080/1539445X.2015.1124114
Effects of stereo-defect distribution on the crystalline morphology and tensile behavior of isotactic polypropylene prepared by compression molding process
S. Chen (2016)
10.1080/07328303.2020.1746329
Comparison on structure, chain conformation, and antioxidant activity of polysaccharides extracted from Liriopes radix with hot water and ultrasound
Xiaomei Wang (2020)
10.1007/s10971-012-2866-8
Influence of Ti addition on boehmite-derived aluminum silicate aerogels: structure and properties
F. Hurwitz (2012)
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)
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