Preparation and characterization of polypropylene-montmorillonite nanocomposites generated byin situ metallocene catalyst polymerization

2005 ◽  
Vol 95 (5) ◽  
pp. 1228-1236 ◽  
Author(s):  
Jyh-Ming Hwu ◽  
George-J Jiang
Keyword(s):  
Metallocene Catalyst ◽  
Montmorillonite Nanocomposites

scholarly journals Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2091
Author(s):  
Daniela Mileva ◽  
Jingbo Wang ◽  
René Androsch ◽  
Katalee Jariyavidyanont ◽  
Markus Gahleitner ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Metallocene Catalyst ◽  
Nucleating Agent ◽  
Random Copolymers ◽  
Rapid Cooling ◽  
Significant Difference ◽  
Chip Calorimetry ◽  
High Cooling Rates ◽  
Fast Scanning Chip Calorimetry

Propylene-based random copolymers with either ethylene or 1-hexene as comonomer, produced using a metallocene catalyst, were studied regarding their crystallization behaviors, with a focus on rapid cooling. To get an impression of processing effects, fast scanning chip calorimetry (FSC) was used in addition to the characterization of the mechanical performance. When comparing the comonomer type and the relation to commercial grades based on Ziegler–Natta-type catalysts, both an interaction with the catalyst-related regio-defects and a significant difference between ethylene and 1-hexene was observed. A soluble-type nucleating agent was found to modify the behavior, but to an increasingly lesser degree at high cooling rates.

scholarly journals Preparation and Characterization of Some Hyperbranched Polyesteramides/Montmorillonite Nanocomposites

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Amal Amin ◽  
Moshera Samy
Keyword(s):  
Maleic Anhydride ◽  
Phthalic Anhydride ◽  
Succinic Anhydride ◽  
Thermal Analyses ◽  
Hyperbranched Polymers ◽  
H Nmr ◽  
Tga And Dsc ◽  
Montmorillonite Nanocomposites

Different polyesteramides hyperbranched polymers (HPEA1-6)/montomorillonite clay (MMT) nanocomposites were prepared with three different loading contents of clay (4, 10, and 15 wt%). The obtained nanocomposites were characterized via XRD, thermal analyses, and TEM. Generally, intercalation behavior was observed. The hyperbranched polyesteramides (HPEA1-6) were originally prepared by the bulky reaction between maleic anhydride (MAn), succinic anhydride (ScAn), and phthalic anhydride (PhAn) with either diethanolamine (DEA) or diisopropanolamine (DiPA). The resulting hyperbranched polyesteramides (HPEA1-6) were characterized by GPC, IR,1H-NMR, TGA, and DSC.

Synthesis and characterization of polyurethane/montmorillonite nanocomposites byin situ polymerization

2006 ◽  
Vol 55 (5) ◽  
pp. 500-504 ◽  
Author(s):  
Qingjun Ding ◽  
Baolei Liu ◽  
Qiang Zhang ◽  
Qihui He ◽  
Baixing Hu ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Montmorillonite Nanocomposites

Preparation and characterization of nylon 66/montmorillonite nanocomposites with co-treated montmorillonites

2003 ◽  
Vol 39 (8) ◽  
pp. 1641-1646 ◽  
Author(s):  
Bing Han ◽  
Gending Ji ◽  
Shishan Wu ◽  
Jian Shen
Keyword(s):  
Nylon 66 ◽  
Montmorillonite Nanocomposites

Preparation and characterization of poly(methyl methacrylate)/reactive montmorillonite nanocomposites

2015 ◽  
Vol 37 (8) ◽  
pp. 2396-2403 ◽  
Author(s):  
Shiwei Chen ◽  
Xuchen Lu ◽  
Zhimin Zhang ◽  
Tizhuang Wang ◽  
Feng Pan
Keyword(s):  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Montmorillonite Nanocomposites
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