http://www.engr.uconn.edu/~jmfent/membrane%20review%201.pdf

Proton-conducting polymer electrolyte membranes based on hydrocarbon polymers

Poly(lactic acid) crystallization

Synthesis and characterization of sulfonated poly(ether ether ketone) for proton exchange membranes

Effect of nucleation and plasticization on the crystallization of poly(lactic acid)

Dynamic covalent polymers: Reorganizable polymers with dynamic covalent bonds

On the molecular weight determination of a poly(aryl-ether-ether ketone) (PEEK)

Several attempts1–5 have been made to control the rate of crystallization and the morphology by the addition of very finely-divided substances which promote abundant nucleation. However, these studies have mostly been carried out on an empirical basis and, except in a few cases (self-seeding6, epitaxy2–5), the mechanism of action of these nucleating agents is poorly understood despite several attempts at modelling1,2. This is particularly so in the case of most technical nucleating agents such as mica, talc and organic salts. We report here that the mechanism of action of organic nucleating agents such as sodium benzoate and its derived salts completely differs from the generally accepted model, at least in the case of polyesters. The nucleating agent reacts as a true chemical reagent with the molten macromolecules and produces ionic end groups which constitute the true nucleating species.

Polymer Crystallization By Chemical Nucleation

Chemical nucleation, a new concept applied to the mechanism of action of organic acid salts on the crystallization of polyethylene terephthalate and bisphenol—A polycarbonate

Crystallization of poly(ethylene terephthalate) induced by organic salts: model compound study of the mechanism of action of the nucleating agent

An opaque or translucent molecularly oriented film made from a composition comprising at least one linear polyester (preferably polyethylene terephthalate) and 0.5-100% by weight based on polyester of at least one olefine polymer, wherein said composition contains at least one carboxylated polyolefine in an amount of 0.05-50% by weight based on olefine polymer. The composition used for the film is preferably formed by precompounding the olefine polymer and carboxylated olefine and then mixing with the polyester.

Eric Nield

Papers

On the molecular weight determination of a poly(aryl-ether-ether ketone) (PEEK)

Polymer Crystallization By Chemical Nucleation

Chemical nucleation, a new concept applied to the mechanism of action of organic acid salts on the crystallization of polyethylene terephthalate and bisphenol—A polycarbonate

Crystallization of poly(ethylene terephthalate) induced by organic salts: model compound study of the mechanism of action of the nucleating agent

Films from compositions of polyesters and olefine polymers