PMID- 16573056 OWN - NLM STAT- MEDLINE DCOM- 20060712 LR - 20190715 IS - 1533-4880 (Print) IS - 1533-4880 (Linking) VI - 6 IP - 2 DP - 2006 Feb TI - Polyethylene/clay nanocomposites prepared by polymerization compounding method. PG - 530-5 AB - A new technique for the preparation of high density polyethylene/clay nanocomposite, "polymerization compounding," is reported. This technique was based on the chemical anchoring of a Ziegler-Natta catalyst on organically modified clay surface containing an ammonium cation bearing primary hydroxyl groups. The polymerization of ethylene was initiated after adequate activation and the growing polyethylene chains are directly adsorbed on to the clay surface through the hydroxyl-functionalized surfactant. Finally, the nanocomposite was prepared by diluting polyethylene adsorbed clay in the high density polyethylene (HDPE) matrix using a batch mixer at 180 degrees C. The as-synthesized nanocomposite was typically characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) that revealed the formation of intercalated nanocomposite. Tensile property measurements exhibit substantial increase in stiffness (approximately 50%) and strength (approximately 20%) of nanocomposite as compared to that of neat HDPE. Dynamic mechanical analysis under molten state revealed 25% increase in storage modulus when compared to that of neat HDPE. FAU - Gaboune, Asmaa AU - Gaboune A AD - Department of Chemical Engineering, Laval University, Sainte-Foy, Quebec GIK 7P4, Canada. FAU - Ray, Suprakas Sinha AU - Ray SS FAU - Ait-Kadi, Abdellatif AU - Ait-Kadi A FAU - Riedl, Bernard AU - Riedl B FAU - Bousmina, Mosto AU - Bousmina M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Nanosci Nanotechnol JT - Journal of nanoscience and nanotechnology JID - 101088195 RN - 0 (Aluminum Silicates) RN - 0 (Polymers) RN - 9002-88-4 (Polyethylene) RN - T1FAD4SS2M (Clay) SB - IM MH - Aluminum Silicates/*chemistry MH - Clay MH - Microscopy, Electron, Transmission MH - *Nanotechnology MH - Polyethylene/*chemistry MH - Polymers/*chemistry MH - X-Ray Diffraction EDAT- 2006/04/01 09:00 MHDA- 2006/07/13 09:00 CRDT- 2006/04/01 09:00 PHST- 2006/04/01 09:00 [pubmed] PHST- 2006/07/13 09:00 [medline] PHST- 2006/04/01 09:00 [entrez] AID - 10.1166/jnn.2006.094 [doi] PST - ppublish SO - J Nanosci Nanotechnol. 2006 Feb;6(2):530-5. doi: 10.1166/jnn.2006.094.