Radical Copolymerization of Vinylidene Fluoride with 8-Bromo-1H,1H,2H-perfluorooct-1-ene: Microstructure, Crosslinking and Thermal Properties

2007 ◽  
Vol 208 (10) ◽  
pp. 1061-1072 ◽  
Author(s):  
Laurent Sauguet ◽  
Bruno Ameduri ◽  
Bernard Boutevin
Keyword(s):  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Radical Copolymerization

Radical Copolymerization of α,β-Difluoroacrylic Acid with Vinylidene Fluoride.

2010 ◽  
Vol 43 (11) ◽  
pp. 4879-4888 ◽  
Author(s):  
Frédéric Boschet ◽  
Jean-Marc Cracowski ◽  
Véronique Montembault ◽  
Bruno Ameduri
Keyword(s):  
Vinylidene Fluoride ◽  
Radical Copolymerization

Enhancement of the Dielectric Constant and Thermal Properties of α-Poly(vinylidene fluoride)/Zeolite Nanocomposites

2010 ◽  
Vol 114 (34) ◽  
pp. 14446-14452 ◽  
Author(s):  
Ana Catarina Lopes ◽  
Marco P. Silva ◽  
Renato Gonçalves ◽  
Manuel F. R. Pereira ◽  
Gabriela Botelho ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride

Radical copolymerization of vinylidene fluoride with 1-bromo-2,2-difluoroethylene

2010 ◽  
Vol 48 (18) ◽  
pp. 3964-3976 ◽  
Author(s):  
G. K. Kostov ◽  
L. Sauguet ◽  
B. Ameduri ◽  
H. Kaspar ◽  
T. Zipplies ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Radical Copolymerization

scholarly journals Enhanced thermal properties of poly(vinylidene fluoride) composites with ultrathin nanosheets of MXene

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20494-20501 ◽  
Author(s):  
Yong Cao ◽  
Qihuang Deng ◽  
Zhiduo Liu ◽  
Dianyu Shen ◽  
Ting Wang ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Ultrathin Nanosheets ◽  
Poly Vinylidene Fluoride

We report a facile method to delaminate MXenes and prepare poly(vinylidene fluoride)/MXene composites with excellent thermal properties.

scholarly journals Cobalt-Mediated Radical Copolymerization of Vinylidene Fluoride and 2,3,3,3-Trifluoroprop-1-ene

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2676
Author(s):  
Panagiotis G. Falireas ◽  
Bruno Ameduri
Keyword(s):  
Diblock Copolymers ◽  
Molar Mass ◽  
Vinylidene Fluoride ◽  
Monomer Conversion ◽  
Radical Copolymerization ◽  
Reactivity Ratios ◽  
Mean Square ◽  
Kinetics Studies ◽  
Lower Reactivity ◽  
Fitting Model

New copolymers based on vinylidene fluoride (VDF) and 2,3,3,3-tetrafluoroprop-1-ene (1234yf) were synthesized by organometallic-mediated radical copolymerization (OMRcP) using the combination of bis(tert-butylcyclohexyl) peroxydicarbonate initiator and bis(acetylacetonato)cobalt(II), (Co(acac)2) as a controlling agent. Kinetics studies of the copolymerization of the fluoroalkenes copolymers were monitored by GPC and 19F NMR with molar masses up to 12,200 g/mol and dispersities (Đ) ranging from 1.33 to 1.47. Such an OMRcP behaves as a controlled copolymerization, evidenced by the molar mass of the resulting copolymer-monomer conversion linear relationship. The reactivity ratios, ri, of both comonomers were determined by using the Fineman-Ross and Kelen-Tüdos fitting model leading to rVDF = 0.384 ± 0.013 and r1234yf = 2.147 ± 0.129 at 60 °C, showing that a lower reactivity of VDF integrated in the copolymer to a greater extent leads to the production of gradient or pseudo-diblock copolymers. In addition, the Q (0.03) and e (0.06 and 0.94) parameters were assessed, as well as the dyad statistic distributions and mean square sequence lengths of PVDF and P1234yf.

scholarly journals 3D Porous Graphene Based Aerogel for Electromagnetic Applications

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hossein Cheraghi Bidsorkhi ◽  
Alessandro Giuseppe D’Aloia ◽  
Alessio Tamburrano ◽  
Giovanni De Bellis ◽  
Andrea Delfini ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Mechanical Stability ◽  
Electronic Devices ◽  
Cost Effective ◽  
Water Repellent ◽  
Processing Temperature ◽  
Porous Graphene ◽  
Poly Vinylidene Fluoride ◽  
Selection Of

Abstract Lightweight multifunctional electromagnetic (EM) absorbing materials with outstanding thermal properties, chemical resistance and mechanical stability are crucial for space, aerospace and electronic devices and packaging. Therefore, 3D porous graphene aerogels are attracting ever growing interest. In this paper we present a cost effective lightweight 3D porous graphene-based aerogel for EM wave absorption, constituted by a poly vinylidene fluoride (PVDF) polymer matrix filled with graphene nanoplatelets (GNPs) and we show that the thermal, electrical, mechanical properties of the aerogel can be tuned through the proper selection of the processing temperature, controlled either at 65 °C or 85 °C. The produced GNP-filled aerogels are characterized by exceptional EM properties, allowing the production of absorbers with 9.2 GHz and 6.4 GHz qualified bandwidths with reflection coefficients below −10 dB and −20 dB, respectively. Moreover, such aerogels show exceptional thermal conductivities without any appreciable volume change after temperature variations. Finally, depending on the process parameters, it is shown the possibility to obtain water repellent aerogel composites, thus preventing their EM and thermal properties from being affected by environmental humidity and allowing the realization of EM absorber with a stable response.

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