Premium
Copolymerization reactivity ratios analysis of sequentially sampled data by error in variables method
Author(s) -
Parıl Ahmet,
Giz Ahmet,
ÇatalgilGiz Huceste
Publication year - 2004
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.21376
Subject(s) - reactivity (psychology) , copolymer , methyl methacrylate , styrene , polymer chemistry , materials science , chemistry , analytical chemistry (journal) , chromatography , organic chemistry , polymer , medicine , alternative medicine , pathology
Abstract A new method for estimating copolymerization reactivity ratios, by sequentially sampling the reaction medium and analyzing the samples by ultraviolet spectroscopy and gravimetry, was developed. The data were analyzed by a new error‐in‐variables method. The method was applied to solution copolymerization of the styrene (Sty)–methyl methacrylate (MMA) system in butyl acetate at 65°C, for which reactivity ratios were r MMA = 0.660 ± 0.050 and r Sty = 0.309 ± 0.050. The data were also analyzed by the Kelen–Tüdös and the Extended Kelen–Tüdös methods where the methods are applicable. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 95: 393–399, 2005