Polycarbonate-polydimethylsiloxane (PDMS) copolymers were synthesized by interfacial phosgenation of 2,2-bis(4-hydroxyphenyl)propane (bisphenol-A) with different types of PDMS oligomers including a,v-amino-organofunctional polydimethylsiloxane (AT-PDMS oligomer), a,v-hydroxy-organofunctional polydim
On the Ordering of Statistical Multiblock Copolymers
β Scribed by Arkadiy D. Litmanovich; Vadim V. Podbelskiy; Yaroslav V. Kudryavtsev
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 325 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1022-1344
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β¦ Synopsis
Abstract
An algorithm was developed to generate an ensemble of statistical multiblock AB copolymer chains via a polymerβanalogous reaction with acceleration. Ordering in the cylindrical ensemble of such chains is simulated via successive rotation of chains until an arrangement with the maximum energy of attraction between each two nearest chains is attained. The master relation of the ordering and the relations between AA, BB and AB contact fractions were found. Those relations permit to estimate the adequacy of modeling polymers of finite length. Influence of a chain structure, length, and interchain interactions on the ordering efficiency was studied.
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The connection between extreme values and record-low values is exploited to derive simply the limiting joint distribution of the r largest order statistics. The use of this distribution in the modelling of corrosion phenomena is considered, and the extrapolation of maxima in space and time is descri