Poly(vinylidene fluoride)/Polymethylene-Based Block Copolymers and Terpolymers
Patil, Yogesh Raghunath
KAUST DepartmentChemical Science Program
KAUST Catalysis Center (KCC)
Office of the VP
Physical Science and Engineering (PSE) Division
Polymer Synthesis Laboratory
Online Publication Date2019-03
Print Publication Date2019-03-12
Permanent link to this recordhttp://hdl.handle.net/10754/631841
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AbstractDual crystalline diblock copolymers consisting of polymethylene (PM) and poly(vinylidene fluoride) (PVDF) blocks as well as triblock terpolymers with polystyrene (PS) as middle block were synthesized. For the synthesis, two/three different polymerization methods such as polyhomologation, atom transfer radical polymerization (ATRP), and iodine transfer polymerization (ITP) along with chain-end postpolymerization reactions were employed. Solid-state NMR spectroscopy revealed the characteristic peaks of all constituent blocks while gel permeation chromatography (GPC) results demonstrated the controlling/living nature of all implemented polymerization methods. The analysis of crystallization behavior based on differential scanning calorimetry (DSC) indicates the presence of different PVDF crystalline phases (α, β, and γ) n block copolymers. Further analysis with X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopies revealed the coexistence of α- and β-phases in diblock copolymers and β- and γ-phases in triblock terpolymer. An initial study of self-assembly in DMF, a selective solvent for PVDF and PS, was performed by dynamic light scattering (DLS) and atomic force microscopy (AFM).
CitationZapsas G, Patil Y, Bilalis P, Gnanou Y, Hadjichristidis N (2019) Poly(vinylidene fluoride)/Polymethylene-Based Block Copolymers and Terpolymers. Macromolecules 52: 1976–1984. Available: http://dx.doi.org/10.1021/acs.macromol.8b02663.
SponsorsThe assistance of Dr. Edy Abou Hamad (KAUST Imaging and Characterization Core Lab) in Solid-state NMR analyses is gratefully acknowledged.
PublisherAmerican Chemical Society (ACS)