PTFE–PMMA core–shell colloidal particles as building blocks for self‐assembled opals: synthesis, properties and optical response

Antonioli, Diego; Deregibus, Simone; Panzarasa, Guido; Sparnacci, Katia; Laus, Michele; Berti, Luca; Frezza, Luca; Gambini, Matteo; Boarino, Luca; Enrico, E.; Comoretto, Davide

doi:10.1002/pi.4206

Cited by 35 publications

(34 citation statements)

References 46 publications

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“…In the past years, several method to enhance the wettability and compatibility of PTFE were developed as high reactive chemicals 2,3 or high energy inputs (UV or plasma). Monodispersed core-shell nanoparticles were obtained using this approach and were used to produce 2D 13 and 3D 14,15 (polymer opal) arrays. 8 PTFE/Polystyrene (PS), 9 PTFE/Polymethylmethacrylate (PMMA), 10,11 and PTFE/polyacrylates 12 core-shell nanoparticles and nanocomposites were prepared using seeded free emulsion polymerization.…”

Section: Introductionmentioning

confidence: 99%

Polycarbonate‐based composites reinforced by in situ polytetrafluoroethylene fibrillation: Preparation, thermal and rheological behavior

Antonioli

Sparnacci

Laus

et al. 2015

J of Applied Polymer Sci

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Fibrillar reinforced composites of polytetrafluoroethylene (PTFE) and\ud polycarbonate (PC) were prepared by in situ fibrillation of PTFE into PC\ud matrix using twin screw extruder. Different samples were obtained by\ud varying the relative ratio between PC and PTFE. The rheological\ud properties of the PC/PTFE composites were found to depend on\ud concentration of the PTFE fibrils. The melt strength analysis in\ud nonisothermal conditions was also studied. The increase in force and\ud decrease in drawability with increasing the PTFE content are associated\ud with the PTFE fibrils formed in situ during the thermomechanical process\ud in twin screw extruder. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym.\ud Sci. 2015, 132, 42401

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Section: Introductionmentioning

confidence: 99%

Polycarbonate‐based composites reinforced by in situ polytetrafluoroethylene fibrillation: Preparation, thermal and rheological behavior

Antonioli

Sparnacci

Laus

et al. 2015

J of Applied Polymer Sci

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“…Two dimensional structuration of these particles leads to 2D colloidal crystals which were employed in nanosphere lithography [14] whereas 3D structuration allowed opals to be obtained featuring interesting photonic properties [15].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of PTFE-PMMA Core-Shell Nanoparticles and Nanocomposites

Antonioli

Laus

Zuccheri

et al. 2012

Journal of Nanotechnology

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The preparation of polytetrafluoroethylene-poly(methyl methacrylate) (PTFE-PMMA) core-shell particles was described, featuring controlled size and narrow size distribution over a wide compositional range, through a seeded emulsion polymerization starting from a PTFE seed of 26 nanometers. Over the entire MMA/PTFE range, the particle size increases as the MMA/PTFE ratio increases. A very precise control over the particle size can be exerted by properly adjusting the ratio between the monomer and the PTFE seed. Particles in the 80-240 nm range can be prepared with uniformity indexes suited to build 2D and 3D colloidal crystals. These core-shell particles were employed to prepare nanocomposites with different compositions, through an annealing procedure at a temperature higher than the glass transition temperature of the shell forming polymer. A perfect dispersion of the PTFE particles within the PMMA matrix was obtained and optically transparent nanocomposites were prepared containing a very high PTFE amount.

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“…Although these lattices are very simple, their fabrication can be time and energy demanding. As a consequence, all-polymer DBRs are arising increasing attention due to their mechanical flexibility, low cost and rapid fabrication methods such as self-assembly [19][20][21], coextrusion [22] and spin-coating [23,24].…”

Section: Introductionmentioning

confidence: 99%

Hybrid ZnO:polystyrene nanocomposite for all‐polymer photonic crystals

Lova

Manfredi

Boarino

et al. 2014

Phys. Status Solidi C

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We report on ZnO nanoparticles‐polystyrene (PS) nanocomposites (NC) engineered to modify PS matrix permeability and refractive index (n), and to fabricate 1D all‐polymer photonic crystals (PC) for sensing applications. The new NC can be easily processed from solutions to prepare high quality thin films by spin coating. ZnO nanoparticles (n = 1.98) have been synthetized by solvothermal route and grafted with a silane to reduce phase segregation in the PS matrix (n = 1.58). Such procedure led to an increase of the matrix refractive index of about 1%. By casting alternated layers of the NC and cellulose acetate (CA, n = 1.46), we fabricated free‐standing and flexible distributed Bragg reflectors (DBRs) of excellent optical quality. Preliminary results on the use of such DBRs as solvent vapor sensors are reported. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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PTFE–PMMA core–shell colloidal particles as building blocks for self‐assembled opals: synthesis, properties and optical response

Cited by 35 publications

References 46 publications

Polycarbonate‐based composites reinforced by in situ polytetrafluoroethylene fibrillation: Preparation, thermal and rheological behavior

Polycarbonate‐based composites reinforced by in situ polytetrafluoroethylene fibrillation: Preparation, thermal and rheological behavior

Preparation and Properties of PTFE-PMMA Core-Shell Nanoparticles and Nanocomposites

Hybrid ZnO:polystyrene nanocomposite for all‐polymer photonic crystals

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