Hydrogen bonds in polymer blends

Hydrogen bonding in polymer blends is a topic of great interest to polymer scientists because such systems have many potential applications. Introducing functional groups to one component to make it capable of forming hydrogen bonds to another, thereby enhancing the miscibility of otherwise immiscible blends, is one of the major achievements during the past 20 years of polymer science. The Painter–Coleman association model generally describes these interactions accurately. This Review discusses in detail the effects of hydrogen bonding on the miscibility and thermal properties of polymer blend systems.

Hydrogen-bonding in polymer blends

Development of a novel type of solid polymer electrolyte for solid state lithium battery applications based on lithium enriched poly (ethylene oxide) (PEO)/poly (vinyl pyrrolidone) (PVP) blend polymer

Proton spin diffusion for spatial heterogeneity and morphology investigations of polymers

Facile preparation of 3D regenerated cellulose/graphene oxide composite aerogel with high-efficiency adsorption towards methylene blue.

High-resolution solid-state 13C nuclear magnetic resonance study on poly(vinyl alcohol)/poly(vinylpyrrolidone) blends

Poly(vinylphenol)/poly(methyl acrylate) and poly(vinylphenol)/poly(methyl methacrylate) blends: hydrogen bonding, miscibility, and blending effects on molecular motions as studied by carbon-13 CP/MAS NMR

Blends of poly(vinylphenol) (PVPh) with poly(ethylene oxide) (PEO) or poly(ethylene glycol) (PEG) blends are studied. The results indicate that an intermolecular hydrogen-bonding interaction causes the blends to be miscible. The miscibility and the phase structure of the blends show a significant compositional dependence. When PVPh is rich, the two polymers are miscible and form an amorphous phase homogeneous on the 20-30 A scale as well as the 200-300 A scale. The motion of PEO (PEG) in the miscible phase is restricted by PVPh. At a PEO (PEG) composition of about 50 wt%, the amorphous PEO (PEG) phase appears and coexists with the miscible phase

Composition dependence of the miscibility and phase structure of amorphous/crystalline polymer blends as studied by high-resolution solid-state carbon-13 NMR spectroscopy

Phase separation and thermal degradation of poly(vinyl alcohol)/poly(methacrylic acid) and poly(vinyl alcohol)/poly(acrylic acid) systems by 13C c.p./m.a.s. n.m.r.

Molecular motion in a poly(vinylphenol) (PVPh)/poly(ethylene oxide) (PEO) blend (PVPh/pEO) is studied by examining the temperature dependence of the line width of high-resolution solid-state 13 C NMR spectra. PEO molecules in the crystalline phase undergo motion in the vicinity of room temperature. The motion is governed by an activation energy and correlation time similar to those related to the glass transition of amorphous polymers. For PVPh/PEO, the onset of backbone chain motion of amorphous PEO and PVPh in the blend reflects on the temperature dependence of 13 C line width. The molecular motions of the two polymers in the miscible amorphous phase affect each other strongly although the chain dynamics of the two polymers still have a different characteristic temperature dependence

Xiaoqing Zhang

Papers

High-resolution solid-state 13C nuclear magnetic resonance study on poly(vinyl alcohol)/poly(vinylpyrrolidone) blends

Poly(vinylphenol)/poly(methyl acrylate) and poly(vinylphenol)/poly(methyl methacrylate) blends: hydrogen bonding, miscibility, and blending effects on molecular motions as studied by carbon-13 CP/MAS NMR

Composition dependence of the miscibility and phase structure of amorphous/crystalline polymer blends as studied by high-resolution solid-state carbon-13 NMR spectroscopy

Phase separation and thermal degradation of poly(vinyl alcohol)/poly(methacrylic acid) and poly(vinyl alcohol)/poly(acrylic acid) systems by 13C c.p./m.a.s. n.m.r.

Molecular motion in a blend of poly(vinylphenol) and poly(ethylene oxide) as studied by high-resolution solid-state carbon-13 NMR spectroscopy