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A sequential algorithm for modelling random movements of chain-like structures

Grzybowski A., Domański Z.

Prace Naukowe Instytutu Matematyki i Informatyki Politechniki Częstochowskiej

2011

Vol. 10, nr 1

5-10

We introduce a sequential cellular-automata-like algorithm enabling efficient sampling of vast search spaces related to the kinetics of long polymers. As an example, with the help of our algorithm we study the movements of linear polymers in the vicinity of a flat membrane with holes in it.

Linear poly(ethylene imine) and poly (2-ethyl-2- oxazoline ) based polymers for film formation

Halacheva S., Price G., Wasbrough M., Edler K.

Polish Journal of Applied Chemistry

2009

Vol. 53, nr 1

23-30

To assist in determining the mechanism of film formation when polymers are added to solutions of surfactants, polymers with varying structures are needed. Well-defined linear poly(ethylene imine) (LPEI) and poly(2-ethyI-2- oxazoline) (PEtOx) polymers with degrees of polymerization ranging from 11 to 96, have been prepared. Cationic ring opening polymerization of 2-ethyl-2-oxazoline, initiated by methyl /j-toluene sulfonate (TsOMe), was used to prepare PEtOx; acid hydrolysis gave linear LPEIs. The polymers have been characterised by 'H NMR and GPC. The formation of mesostructured films at the air-solution interface from mixtures of these polymers with hexadecyltrimethylammonium bromide (C16TAB) and sodium dodecyl sulphate (SDS) has been investigated.