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加拿大polymer source POLY(STYRENE)-B-POLY(LACTIDE) P9028-SLA

加拿大polymer source POLY(STYRENE)-B-POLY(LACTIDE) P9028-SLA

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Poly(styrene-b-lactide) is prepared by living anionic polymerization in sequential addition of styrene followed by lactide monomer or by taking the OH end functionalized polystyrene and using co-ordination polymerization process. The scheme of the reaction is illustrated below:


The block polymer was analyzed by size exclusion chromatography (SEC) to estimate the molecular weight and polydispersity index (PDI). Further, the copolymer composition was calculated from 1H-NMR spectroscopy by comparing the peak area of the polystyrene protons at

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Ve (ml)


about 6.3-7.2 ppm with the lactide protons at 5.2 ppm. Copolymer PDI was determined by SEC.

 

Solubility:

 

Poly(styrene-b-lactide) is soluble in chloroform, THF, and toluene.