Morphology and Curing Behaviors of Phenolic Resin-Layered Silicate Nanocomposites Prepared by Melt Intercalation

2000 ◽  
Vol 12 (10) ◽  
pp. 2977-2983 ◽  
Author(s):  
Min Ho Choi ◽  
In Jae Chung ◽  
Jong Doo Lee

2005 ◽  
Vol 65 (13) ◽  
pp. 1996-2002 ◽  
Author(s):  
Joong-Hee Lee ◽  
Daeseung Jung ◽  
Chang-Eui Hong ◽  
Kyong Y. Rhee ◽  
Suresh G. Advani


2008 ◽  
Vol 30 (3) ◽  
pp. 343-350 ◽  
Author(s):  
C. Cem Tasan ◽  
Cevdet Kaynak


2001 ◽  
Vol 13 (11) ◽  
pp. 4221-4226 ◽  
Author(s):  
Ho Yun Byun ◽  
Min Ho Choi ◽  
In Jae Chung


Polymer ◽  
2003 ◽  
Vol 44 (7) ◽  
pp. 2033-2040 ◽  
Author(s):  
Bénédicte Lepoittevin ◽  
Nadège Pantoustier ◽  
Myriam Devalckenaere ◽  
Michaël Alexandre ◽  
Cédric Calberg ◽  
...  


e-Polymers ◽  
2001 ◽  
Vol 1 (1) ◽  
Author(s):  
Nadège Pantoustier ◽  
Michaël Alexandre ◽  
Philippe Degée ◽  
Cédric Calberg ◽  
Robert Jérôme ◽  
...  

AbstractNanocomposites based on biodegradable poly(e-caprolactone) (PCL) and layered silicates (montmorillonite) modified by various alkylammonium cations were prepared by melt intercalation. Depending on whether the ammonium cations contain non-functional alkyl chains or chains terminated by carboxylic acid or hydroxyl functions, microcomposites or nanocomposites were recovered as shown by X-ray diffraction and transmission electron microscopy. Mechanical and thermal properties were examined by tensile testing and thermogravimetric analysis. The layered silicate PCL nanocomposites exhibited some improvement of the mechanical properties (higher Young’s modulus) and increased thermal stability as well as enhanced flame retardant characteristics as result of a charring effect. This communication aims at reporting that the formation of PCL-based nanocomposites strictly depends on the nature of the ammonium cation and its functionality, but also on the selected synthetic route, i.e. melt intercalation vs. in situ intercalative polymerization. Typically, protonated w-aminododecanoic acid exchanged montmorillonite allowed to intercalate ε -caprolactone monomer and yielded nanocomposites upon in situ polymerization, whereas they exclusively formed microcomposites when blended with preformed PCL chains. In other words, it is shown that the formation of polymer layered silicate nanocomposites is not straightforward and cannot be predicted since it strongly depends on parameters such as ammonium cation type and functionality together with the production procedure, i.e., melt intercalation, solvent evaporation or in situ polymerization.



2013 ◽  
Vol 4 (3/4) ◽  
pp. 343
Author(s):  
Engku Zaharah E. Zawawi ◽  
Sahrim Ahmad ◽  
Rozaidi Rasid ◽  
A.R. Shamsul Bahri


2003 ◽  
Vol 49 (6) ◽  
pp. 473-480 ◽  
Author(s):  
Chenggang Chen ◽  
David Curliss


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