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Study of the structure of poly(methyl methacrylate) obtained in the presence of potassium hydride

✍ Scribed by Andrzej Stolarzewicz; Barbara Morejko-Buż; Dorota Neugebauer

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
77 KB
Volume
14
Category
Article
ISSN
0951-4198

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✦ Synopsis

Electrospray ionization mass spectrometry (ESI-MS) in positive-and negative-ion mode and multi-step tandem mass spectrometry (ESI-MS n ) were selected for the determination of the structure of poly(methyl methacrylate) obtained using potassium hydride as initiator. Macromolecules with methoxy and methyl starting groups, i.e. those situated at the beginning of the polymer backbone, were observed in this case. No other differences in the chain structure were found in the polymer.

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## Abstract The factors that affect the dispersion of exfoliated organically modified montmorillonite in a solution of poly(methyl methacrylate) in methyl methacrylate are explored. Exfoliation of montmorillonite in the solution is achieved with the assistance of ultrasound, and rheological measure