Rheological properties of blends of linear and long-chain branched polypropylenes

2009 ◽  
Vol 50 (1) ◽  
pp. 191-199 ◽  
Author(s):  
Seyed H. Tabatabaei ◽  
Pierre J. Carreau ◽  
Abdellah Ajji
Keyword(s):  
Rheological Properties ◽  
Long Chain

Rheological Properties of Microgel Prepared with Long-Chain Crosslinkers by a Precipitation Polymerization Method

2011 ◽  
Vol 51 (5) ◽  
pp. 880-896 ◽  
Author(s):  
H. Es-Haghi ◽  
H. Bouhendi ◽  
G. Bagheri Marandi ◽  
M. J. Zohurian-Mehr ◽  
K. Kabiri
Keyword(s):  
Rheological Properties ◽  
Precipitation Polymerization ◽  
Polymerization Method ◽  
Long Chain

Effect of salts on local mobility and rheological properties of micelles of new long-chain surfactant

2011 ◽  
Vol 73 (4) ◽  
pp. 453-457 ◽  
Author(s):  
A. M. Vasserman ◽  
M. V. Motyakin ◽  
L. L. Yasina ◽  
V. G. Vasil’ev ◽  
L. Z. Rogovina
Keyword(s):  
Rheological Properties ◽  
Local Mobility ◽  
Long Chain

scholarly journals Rheological properties, oxidative stability and sensory evaluation of enzymatically synthesized medium- and long-chain triacylglycerol-based salad dressings

2008 ◽  
Vol 110 (12) ◽  
pp. 1116-1126 ◽  
Author(s):  
Soo-Peng Koh ◽  
Norlelawati Arifin ◽  
Chin-Ping Tan ◽  
Mohd. Suria Affandi Yusoff ◽  
Kamariah Long ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Rheological Properties ◽  
Sensory Evaluation ◽  
Long Chain

Linear Rheological Properties of the Semifluorinated Copolymer Tetrafluoroethylene-Hexafluoropropylene-Vinylidenfluoride (THV) with Controlled Amounts of Long-Chain Branching

2007 ◽  
Vol 40 (7) ◽  
pp. 2409-2416 ◽  
Author(s):  
Jens Stange ◽  
Susanne Wächter ◽  
Helmut Münstedt ◽  
Harald Kaspar
Keyword(s):  
Rheological Properties ◽  
Chain Branching ◽  
Long Chain Branching ◽  
Long Chain

Molecular Theories for the Viscoelasticity of Flexible Homogeneous Polymeric Liquids

2007 ◽  
Author(s):  
Chang Dae Han
Keyword(s):  
Molecular Weight ◽  
Rheological Properties ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Viscoelastic Behavior ◽  
Chain Branching ◽  
Molecular Parameters ◽  
Long Chain Branching ◽  
Polymeric Liquids ◽  
Long Chain

The fact that a polymer consists of a number of chains of different lengths, each in turn consisting of a series of monomer units, means that the motion of one part of the polymer chain will profoundly affect the motion of other parts. Hence, for a given polymer, a description of microscopic processes occurring under a given flow field depends on hypotheses regarding the molecular structure and mechanisms of flow in the polymer. Today, it is well-known, gained from practical experience, that the molecular weight, the molecular weight distribution, and the degree of long-chain branching influence the rheological properties of polymeric liquids. Therefore, a better understanding of the relationship between molecular parameters and rheological properties is very important from the standpoints of both polymer synthesis and polymer processing. However, the theoretical development of this aspect of the problem is far from complete, although some important progress has been made. In the preceding chapter, we discussed the viscoelastic behavior of polymeric liquids from the phenomenological point of view, without associating the significance of theoretical predictions to molecular origin(s). Specifically, we have seen that the rheological equations of state contain parameters that vary from polymer to polymer. Since it has amply been demonstrated by experiment that the extent of a particular viscoelastic behavior is greatly influenced by the molecular parameters, such as molecular weight, molecular weight distribution, and the degree of long-chain branching, predictions of any viscoelastic behavior of polymers on the basis of phenomenological theory is of very limited use to either control the quality of polymers produced or improve the performance of polymers, unless the parameters appearing in various continuum constitutive equations are related to molecular parameters.

Dynamic mechanical and rheological properties of metallocene-catalyzed long-chain-branched ethylene/propylene copolymers

Polymer ◽  
2004 ◽  
Vol 45 (16) ◽  
pp. 5497-5504 ◽  
Author(s):  
Wen-Jun Wang ◽  
Zhibin Ye ◽  
Hong Fan ◽  
Bo-Geng Li ◽  
Shiping Zhu
Keyword(s):  
Rheological Properties ◽  
Ethylene Propylene ◽  
Dynamic Mechanical ◽  
Long Chain

scholarly journals Rheological Properties of Polyolefin Blends Containing Long-Chain Branched Polypropylene as Dispersed Phase

2020 ◽  
Vol 48 (2) ◽  
pp. 109-112 ◽  
Author(s):  
Masayuki Yamaguchi ◽  
Yoko Fujii ◽  
Panitha Phulkerd
Keyword(s):  
Rheological Properties ◽  
Dispersed Phase ◽  
Polyolefin Blends ◽  
Branched Polypropylene ◽  
Long Chain ◽  
Long Chain Branched Polypropylene

A zwitterionic polymer containing a hydrophobic group: enhanced rheological properties

2020 ◽  
Vol 44 (23) ◽  
pp. 9703-9711
Author(s):  
Ling Liu ◽  
Shaohua Gou ◽  
Huichao Zhang ◽  
Lihua Zhou ◽  
Lan Tang ◽  
...  
Keyword(s):  
Free Radical ◽  
Rheological Properties ◽  
Solution Polymerization ◽  
Hydrophobic Group ◽  
Zwitterionic Polymer ◽  
Radical Solution ◽  
Long Chain

A zwitterionic polymer containing a hydrophobic long chain, named MANPS, was independently developed by free radical solution polymerization.

Long-Chain Branched Polypropylenes by Electron Beam Irradiation and Their Rheological Properties

2004 ◽  
Vol 37 (25) ◽  
pp. 9465-9472 ◽  
Author(s):  
Dietmar Auhl ◽  
Jens Stange ◽  
Helmut Münstedt ◽  
Beate Krause ◽  
Dieter Voigt ◽  
...  
Keyword(s):  
Electron Beam ◽  
Rheological Properties ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Long Chain
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