Special Issue "Nanocomposites of Polymers and Inorganic Particles"
QuicklinksA special issue of Materials (ISSN 1996-1944).
Deadline for manuscript submissions: closed (31 December 2009)
Special Issue Editor
Guest Editor
Prof. Dr. Walter Remo Caseri
Institut für Polymere, HCI H 509, Wolfgang-Pauli-Str. 10, CH-8093 Zürich, Switzerland
Website: http://www.polytech.mat.ethz.ch/people/staff/wcaseri
E-Mail:
Interests: inorganic polymers; organometallic polymers; nanocomposites
Published Papers
Special Issue Information
Dear Colleagues,
Optical or magnetic characteristics can change upon decrease of particle sizes to very small dimensions (around 100 nm or well below, depending on the requested effect), which is in general of major interest in the area of composite materials. With this respect, frequently considered features are superparamangetism or optical properties (for example, the extent of light scattering or, in the case of metal particles, the color). The reduction in light scattering upon usage of nanoparticles can also be of interest in combination with other properties which favorably improve characteristics of polymeric materials, such as UV absorption, photoconductivity or modification of refractive indices. Certain optical effects, for instance iridescence or dichroism, emerge only by particular distributions of the nanoparticles within the polymer matrix. The fact that properties of nanocomposites can differ from those of analogous composites with larger particles self-evidently offers a plethora of opportunities for the creation of materials with exceeding performance.
Prof. Dr. Walter Remo Caseri
Guest Editor
Submission
All papers should be submitted to materials@mdpi.org. To be published continuously until the deadline and papers will be listed together at the special website.
Submitted papers should not have been published previously, nor be under consideration for publication elsewhere. All papers are refereed through a peer-review process. A guide for authors is available on the Instructions for Authors page. Materials is an international peer-reviewed quarterly journal published by Molecular Diversity Preservation International. Review manuscripts: Before writing their manuscripts, potential authors of review articles should forward the title and a short abstract to materials@mdpi.org. We will then provide feedback on the suitability of the topic.
Open Access publication fees are 300 CHF per paper. English correction fees and/or formatting fees (250 CHF) will be added in certain cases (550 CHF per paper for those papers that require extensive additional formatting and/or English corrections).
Keywords
- nanocomposites
- polymers
- nanoparticles
- optical properties
- magnetic properties
Planned Papers
Type of Paper: Review
Title: Composites of Polymer and Synthetic Ceramic Nanoparticles: From Synthesis to Applications
Authors: Thomas Hanemann and Dorothee Vinga Szabó
Abstract: The addition of ceramic nanoparticles to polymers allows for the modification of the polymers physical properties as well as the implementation of new features in the polymer matrix. The review article will cover the different synthetic methods for ceramic nanoparticles, nanoparticle surface modification, the different dispersion methods as well as the thermomechanical, dielectric, conductive, magnetic as well as optical properties of the resulting polymer-nanoparticle-composites. Finally typical existing and potential applications will be shown.
Type of Paper: Review
Title: Polymer-Inorganic Particle Nanocomposite: an Advance Material
Author: Subhendu Raychowdhury
Affiliation: Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102 Newark, NJ 07102, USA
Abstract: Polymer nanocomposite is a smart extension of polymer composite. Now-a-days it has got unparallel research focus in the field of Polymer Science and Technologies. This review is intended to be a comprehensive source of huge polymer-inorganic particle nanocomposite researches. It discusses the structures and roles of various fillers in improving specific properties. This review includes synthesis techniques, dispersion promotion methods, characterization techniques and applications. In addition to presenting the advance in polymer-inorganic nanocomposite research, this article clearly discusses the opportunities of nanocomposites, such as unmatched performance,design flexibility,lower unit and life-cycle costs, decoupling of properties (stiffness-toughness) and market forecast etc. The scientific principles and mechanisms in relation to the property improvements have also been discussed with reference to published articles. Hence, this review offers a comprehensive discussion on processing, characterization, opportunity, application and health/safety concerns for polymer-inorganic particles nanocomposites. At last, the review singles out the persistent challenges like miscibility/dispersion (intercalation-delamination), interfacial strength etc. in polymer-inorganic nanocomposites in spite of having its enormous development.
Type of Paper: Review
Authors: Jiang-Jen Lin, Ying-Nan Chan, and Yi-Fen Lan
Affiliation:Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan; E-Mail: jianglin@ntu.edu.tw; Tel. +886-2-3366-5312; Fax: +886-2-8369-1384.
Abstract:This review discusses different smectic clays including natural montmorillonite (MMT), synthetic fluorine mica (Mica), and anionic magnesium–aluminum layered double hydroxide (LDH) on ionic exchange reaction with polyamine salts and hydrophobic properties of the intercalated organoclays. In a general approach, the cationic and anionic clays can be interlayer spacing expanded from 13.5 to 92.0 Å by X-ray diffraction and incorporated with organic composition from 23 to 72 wt%. The intercalating agents including poly(oxypropylene)-polyamines salts of various molecular weight from 230 to 5,000 g/mol and their polymeric derivatives will be reviewed. The tailoring in layered spacing and organic content implies the changes in hydrophobic property and compatibility with other organic and inorganic substrates. Through these organic modifications, the generated organoclays have emerged in biomedical applications such as enzyme encapsulation and DNA embedment for gene therapy. The clay-protein hybrids were prepared from either direct or stepwise intercalation. The method of embedding large molecules into the silicate gallery provides a new synthesis for encapsulating biomaterials in inorganic clay hybrids potentially useful for drug delivery. For interacting with other nanomaterials such as carbon nanotubes (CNTs), the clays of plate-like geometric shape and ionic charge enabled to minimize the CNTs’ inherent aggregation through nanoscale size and noncovalent bonding interactions. The physically mixed clay-CNT hybrids exhibited an amphiphilic solvating properties and forming micellar microstructures in water and hydrophobic solvents such as toluene. Two different types of nanomaterials are complimentarily compatible for downstream uses. This review will further cover the uses of organic/layered-silicate hybrids (organoclays) for compounding with the epoxies. One particular physical property, the coefficient of thermal expansion (CTE), was significantly reduced as well as other properties such as hardness and thermal stability. The epoxy nanocomposites with low CTE property have important applications and impacts on developing the materials for encapsulation of light-emitting diode and solar cell devices. The review will center on the organic intercalation of the layered clays and their applications for encapsulating biomaterials and improving epoxy materials.
Type of Paper: Review
Authors: Wei Chen 1,*, Maria L. Auad 2, Hongbin Lu 3
2 University of Auburn, USA; 3. Fudan University, China
Type of Paper: Review
Type of paper: Review
Tentative title: Nanocomposites of Polymer and Inorganic Nanoparticles for Optical and Magnetic Applications
Authors: Shanghua Li et al.
Affiliation: Division of Functional Materials, Royal Institute of Technology (KTH), Electrum 229, Isafjordsgatan 22, SE-16440 Kista, Sweden
Abstract: This article provides an up-to-date review on nanocomposites composed of inorganic nanoparticles and polymer matrix for optical and magnetic applications. Optical or magnetic characteristics can change upon decrease of particle sizes to very small dimensions, which is in general of major interest in the area of composite materials. With this respect, frequently considered features are optical properties (for example, UV absorption, and the extent of light scattering or, in the case of metal particles, the color) and magnetic properties such as superparamagnetism. Synthetic techniques of polymer-inorganic nanocomposites will be summarized. Problems and future possibilities for development of nanocomposites for optical and magnetic applications are also introduced in the review.
Title: Nanocomposites Derived from Polymers and Inorganic Nanoparticles
Authors: In-Yup Jeon and Jong-Beom Baek
Affiliation: School of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), 194, Banyeon, Ulsan, 689-805 South Korea
Abstract: Polymers are considered as good host materials, because they can be designed to yield a variety of bulk physical properties, and they normally exhibit long-term stability and flexible processability. Metal nanoparticles display outstanding optical, catalytic, electronic and magnetic properties, which are significantly different from those of bulk states. Recently, polymer-nanoparticle nanocomposites, which are relatively new materials, have attracted a lot of attention because they are expected to synergistically improve their properties by adding a small amount of nanoparticles in the hosting matrices. The resultant nanocomposites not only combine the attractive functionalities of each component, but show many unexpected characteristics. The potential applications of the resultant nanocomposites could be very useful for many applications such as automotive and aerospace industries, electronics and electrical engineering.
Type of Paper: Review
Title: Nanocomposite Hydrogels and Microgels Combining Superparamagnetism and Thermosensitivity
Authors: Tiphaine Châtelain, Réda Karoum, José Alberto Galicia, Delphine El kharrat, Valérie Cabuil, Christine Ménager and Olivier Sandre
Affiliations: UPMC Univ Paris 6 / CNRS / ESPCI Paristech, Laboratoire Physicochimie des Electrolytes, Colloïdes et Sciences Analytiques, Université Pierre et Marie Curie, 4 Place Jussieu, case 51, 75005 Paris, France; E-Mail: olivier.sandre@upmc.fr
Abstract: To obtain “smart vectors” that release a drug by inductive heating, chemists have thought to design nanocomposite gels of a thermosensitive polymer like Poly(N-isopropylacrylamide) loaded with magnetic nanoparticles (MNPs). Submitted to an oscillatory magnetic field at high frequency (100kHz – 1MHz), MNPs manifest a strong thermal dissipation, that could heat locally a polymer matrix that shrinks at high temperature. In this paper, we describe the preparation of such nanocomposite “ferrogels” combining PNIPAM and MNPs. Both for macroscopic samples or colloidal “microgels”, we need to improve the compatibility of the two components to achieve an efficient entrapment of the MNPs inside the polymer host. In previous studies, we have shown that hydrogels of Poly(acrylamide) (PAM) are suitable matrices, due to H-bonds between PAM and iron oxide. To overcome the poorer interaction between PNIPAM and MNPs, several gels containing NIPAM with co-monomers (acrylamide, acrylic acid or isopropyl-methacrylamide) either as statistical copolymers or (semi)-interpenetrated networks (IPNs) are proposed. The results are discussed in terms of the encapsulation of the MNPs inside the mesh and the gel volume vs temperature.
Last update: 9 March 2010