Large‐scale fractionation of poly(vinyl chloride) and characterization of the fractions | Zendy

Pezzin G. | Zendy; Sanmartin G. | Zendy; ZilioGrandi F. | Zendy

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Large‐scale fractionation of poly(vinyl chloride) and characterization of the fractions

Author(s) -

Pezzin G.,

Sanmartin G.,

ZilioGrandi F.

Publication year - 1967

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1967.070110815

Subject(s) - osmometer , vinyl chloride , molar mass distribution , fractionation , viscometer , glass transition , characterization (materials science) , polymer chemistry , materials science , molecular mass , turbidimetry , precipitation , gel permeation chromatography , analytical chemistry (journal) , chemistry , chemical engineering , chromatography , polymer , organic chemistry , viscosity , composite material , nanotechnology , physics , meteorology , engineering , copolymer , enzyme

A large‐scale fractionation of poly(vinyl chloride) (3000 g.) has been carried out by a fractional precipitation method. The molecular weight distribution of some fractions has been controlled by refractionation. The fractions have been also characterized by viscometry, osmometry, light‐scattering, and glass transition temperature measurements. The data available in literature concerning the molecular weight characterization of poly(vinyl chloride) fractions have been critically reviewed. It has been shown that most of the viscometric and osmometric data are in good agreement when the molecular weights are below 10 5 . Above 10 5 the literature discrepancies can be attributed to aggregation.

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