Polyolen Nanocomposites with Layered Double Hydroxides

Wang, De‐Yi; Costa, Francis Reny; Leuteritz, Andreas; Purohit, Purv J.; Schoenhals, Andreas; Vyalikh, Anastasia; Scheler, Ulrich; Wagenknecht, Udo; Kutlu, Burak; Heinrich, Gert

doi:10.1201/b10409-12

Cited by 3 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ethylene copolymers have been extensively employed in the preparation of PCNs, and reviews dedicated to polyolefin-based PCNs are available in the scientific literature [9][10][11][12][13][14]. The level of silicate layers dispersion in PCNs based on ethylene copolymers depends on the type, the concentration and the location of the functional groups on the polymer chains, the structure of the surfactant used for clay modification, the organoclay loading, etc.…”

Section: Introductionmentioning

confidence: 99%

XRD study of intercalation in statically annealed composites of ethylene copolymers and organically modified montmorillonites. 2. One-tailed organoclays

Filippi

Polacco

2014

International Journal of Smart and Nano Materials

View full text Add to dashboard Cite

Ethylene copolymers with different polar comonomers, such as vinyl acetate, methyl acrylate, glycidyl methacrylate, and maleic anhydride, were used for the preparation of polymer/clay nanocomposites by statically annealing their mechanical mixtures with different commercial or home-made organically modified montmorillonites containing only one long alkyl tail. The nanostructure of the products was monitored by X-ray diffraction, and the dispersion of the silicate particles within the polymer matrix was qualitatively evaluated through microscopic analyses. The effect of the preparation conditions on the structure and the morphology of the composites was also addressed through the characterization of selected samples with similar composition prepared by melt compounding. In agreement with the findings reported in a previous paper for the composites filled with two-tailed organoclays, intercalation of the copolymer chains within the tighter galleries of the one-tailed clays occurs easily, independent of the application of a mechanical stress. However, the shear-driven break-up of the intercalated clay particles into smaller platelets (exfoliation) seems more hindered. A collapse of the organoclay interlayer spacing was only observed clearly for a commercial one-tailed organoclay – Cloisite® 30B – whereas the same effect was almost negligible for a home-made organoclay with similar structure

show abstract

Section: Introductionmentioning

confidence: 99%

XRD study of intercalation in statically annealed composites of ethylene copolymers and organically modified montmorillonites. 2. One-tailed organoclays

Filippi

Polacco

2014

International Journal of Smart and Nano Materials

View full text Add to dashboard Cite

show abstract

“…Many reviews have been focused onto the preparation and the characterization of nanocomposites from thermoplastic polymers often addressed to highlight their improved thermal and mechanical features when compared to polymer matrix or traditional composites [ 1 , 2 , 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites Based on Thermoplastic Polymers and Functional Nanofiller for Sensor Applications

et al. 2015

View full text Add to dashboard Cite

Thermoplastic polymers like polyolefins, polyesters, polyamide, and styrene polymers are the most representative commodity plastics thanks to their cost-efficient manufacturing processes, excellent thermomechanical properties and their good environmental compatibility, including easy recycling. In the last few decades much effort has been devoted worldwide to extend the applications of such materials by conferring on them new properties through mixing and blending with different additives. In this latter context, nanocomposites have recently offered new exciting possibilities. This review discusses the successful use of nanostructured dispersed substrates in designing new stimuli-responsive nanocomposites; in particular, it provides an updated description of the synthetic routes to prepare nanostructured systems having the typical properties of thermoplastic polymers (continuous matrix), but showing enhanced optical, conductive, and thermal features dependent on the dispersion topology. The controlled nanodispersion of functional labeled clays, noble metal nanoparticles and carbon nanotubes is here evidenced to play a key role in producing hybrid thermoplastic materials that have been used in the design of devices, such as NLO devices, chemiresistors, temperature and deformation sensors.

show abstract

“…More specifically, polymer/layered silicate nanocomposites5 have attracted substantial attention because of their superior physical and mechanical properties (including enhanced modulus, increased thermal stability, decreased flammability and decreased gas permeability) compared with virgin polymers or conventional composites 6–12. Depending on the strength of interfacial interactions between polymer matrix and layered silicate (organically modified or not), three different types of composites are thermodynamically achievable: (i) conventional composites, where packages of silicate layers keep their stacking, creating a conventional phase‐separated composite (microcomposite); (ii) intercalated nanocomposites, where the multi‐layer structure of the silicates is retained, with alternating polymer/silicate layers and a repeat spacing larger than that of the original clay or organically modified clay (organoclay); and (iii) exfoliated nanocomposites, where the primary particles of the organoclay are delaminated into individual nanometre‐thick silicate layers 8, 13–15. The latter two types of composites show much better mechanical, thermal and gas‐barrier properties.…”

Section: Introductionmentioning

confidence: 99%

Polymerizable ionic liquids for the preparation of polystyrene/clay composites

Pucci

Liuzzo

Melai

et al. 2012

Polymer International

View full text Add to dashboard Cite

Polymerizable ionic liquids (ILs) 1-methyl-3-(4-vinylbenzyl)imidazolium chloride, 1-hexyl-3-(4-vinylbenzyl)imidazolium chloride and 1-dodecyl-3-(4-vinylbenzyl)imidazolium chloride were prepared and used as new surfactants for the modification of montmorillonite (MMT). Functionalized MMTs were prepared by cationic exchange between sodium MMT and each of the ILs. Polystyrene (PS)/MMT composites were subsequently prepared by in situ intercalative free radical polymerization of styrene containing dispersed organophilic MMT. Exfoliation of MMT in the PS matrix was achieved only for MMT functionalized with the 1-dodecyl-3-(4-vinylbenzyl)imidazolium-based IL as revealed by X-ray diffraction and electron microscopy. The exfoliated composites showed good transparency and higher decomposition temperature than virgin polymer matrix, particularly pronounced under air atmosphere (Tmax = 66 degrees C), data comparable to or even greater than those reported in the literature for exfoliated PS nanocomposites

show abstract

Polyolen Nanocomposites with Layered Double Hydroxides

Cited by 3 publications

References 1 publication

XRD study of intercalation in statically annealed composites of ethylene copolymers and organically modified montmorillonites. 2. One-tailed organoclays

XRD study of intercalation in statically annealed composites of ethylene copolymers and organically modified montmorillonites. 2. One-tailed organoclays

Nanocomposites Based on Thermoplastic Polymers and Functional Nanofiller for Sensor Applications

Polymerizable ionic liquids for the preparation of polystyrene/clay composites

Contact Info

Product

Resources

About