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6599914 
Journal Article 
COPOINT - a simple computer program to determine copolymerization parameters by numerical integration 
Beginn, U; , 
2005 
Yes 
E-polymers
ISSN: 1618-7229 
WALTER DE GRUYTER GMBH 
BERLIN 
WOS:000232806300001 
A computer program is introduced that evaluates the parameters of binary copolymerizations from comonomer/copolymer composition data as obtained from polymerization experiments with finite monomer conversion. The program numerically integrates a given copolymerization equation in its differential form and can be applied to a broad variety of functions. Copolymerization parameters are obtained by minimizing the sum of square differences between measured and calculated polymer compositions with respect to the copolymerization parameters. Errors of the fitted parameters are estimated from the statistical error of the sum of square differences, as well as from a quadratic approximation of this sum in the vicinity of the optimized values of the copolymerization parameters.