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Effect of four neighboring groups in kinetics of polymer reactions
Author(s) -
Krishnaswami P.,
Yadav D. P.
Publication year - 1976
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.1976.070200504
Subject(s) - autocatalysis , reaction rate , kinetics , function (biology) , polymer , rate equation , chemical kinetics , thermodynamics , chemistry , polymer chemistry , mathematics , materials science , physics , organic chemistry , catalysis , classical mechanics , evolutionary biology , biology
Assuming that the rate of reaction of an unreacted site in polymer reactions depends upon whether the two immediate neighboring sites on either side (four neighboring sites in all) are reacted or unreacted, differential equations were obtained giving the rate of change of N n with time (where N n is the number of sequences of n consecutive unreacted sites with a reacted site at both ends) and solved numerically with the help of a computer. N n was obtained as a function of time and also as a function of M , the total number of unreacted sites. Three sets of values of k were tried, one of these relating to autocatalytic reaction, one to autoretarding reaction, and one to the null case in which the reaction rates do not depend upon the neighbors.