Poly(vinylidene fluoride)-b-poly(styrene) Block Copolymers by Iodine Transfer Polymerization (ITP):  Synthesis, Characterization, and Kinetics of ITP

2006 ◽  
Vol 39 (25) ◽  
pp. 8639-8651 ◽  
Author(s):  
David Valade ◽  
Cyrille Boyer ◽  
Bruno Ameduri ◽  
Bernard Boutevin
Keyword(s):  
Block Copolymers ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Iodine Transfer ◽  
Kinetics Of

Simulations of High-Strain Electrostrictive Chlorinated Terpolymers

2003 ◽  
Vol 785 ◽  
Author(s):  
George J. Kavarnos ◽  
Thomas Ramotowski
Keyword(s):  
Vinylidene Fluoride ◽  
High Strain ◽  
Polymer Chains ◽  
X Ray Diffraction ◽  
X Ray ◽  
Lamellar Structures ◽  
Annealing Conditions ◽  
Poly Vinylidene Fluoride ◽  
Electromechanical Responses ◽  
Kinetics Of

ABSTRACTChlorinated poly(vinylidene fluoride/trifluoroethylene) terpolymers are remarkable examples of high strain electrostrictive materials. These polymers are synthesized by copolymerizing vinylidene fluoride and trifluoroethylene with small levels of a third chlorinated monomer. The electromechanical responses of these materials are believed to originate from the chlorine atom, which, by its presence in the polymer chains and by virtue of its large van der Waals radius, destroys the long-range crystalline polar macro-domains and transforms the polymer from a normal to a high-strain relaxor ferroelectric. To exploit the strain properties of the terpolymer, it is desirable to understand the structural implications resulting from the presence of the chlorinated monomer. To this end, computations have been performed on model superlattices of terpolymers using quantum-mechanical based force fields. The focus has been on determining the energetics and kinetics of crystallization of the various polymorphs that have been identified by x-ray diffraction and fourier transform infrared spectroscopy. The chlorinated monomer is shown to act as a defect that can be incorporated into the lamellar structures of annealed terpolymer without a high cost in energy. The degree of incorporation of the chlorinated monomer into the crystal lattice is controlled by annealing conditions and ultimately determines the ferroelectric behavior of the terpolymers.

Molecular weight dependent of the crystallization kinetics of poly(vinylidene fluoride)

1992 ◽  
Vol 32 (17) ◽  
pp. 1300-1308 ◽  
Author(s):  
Sophie Roussel ◽  
Kathy Lynn McElroy ◽  
Lawrence H. Judovits
Keyword(s):  
Molecular Weight ◽  
Crystallization Kinetics ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Kinetics Of

Kinetic and mechanistic aspects of the iodine transfer copolymerization of vinylidene fluoride with 2,3,3,3-tetrafluoro-1-propene and functionalization into ω-hydroxy fluorinated copolymers

2016 ◽  
Vol 7 (39) ◽  
pp. 6099-6109 ◽  
Author(s):  
Sanjib Banerjee ◽  
Saad Zaghloul ◽  
Ali Alaaeddine ◽  
Bruno Ameduri
Keyword(s):  
Vinylidene Fluoride ◽  
Water Based ◽  
Poly Vinylidene Fluoride ◽  
Iodine Transfer ◽  
Fluorinated Copolymers

ω-Hydroxy functionalized poly(vinylidene fluoride) prepared in a water-based non-fluorinated solvent by iodine transfer copolymerization VDF and 1234yf.

Alkyne–azide coupling of tailored poly(vinylidene fluoride) and polystyrene for the synthesis of block copolymers

2012 ◽  
Vol 3 (2) ◽  
pp. 409-414 ◽  
Author(s):  
Radovan Vukićević ◽  
Ulrike Schwadtke ◽  
Simon Schmücker ◽  
Philipp Schäfer ◽  
Dirk Kuckling ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride
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