Condensed Matter Physics, 2002, vol. 5, No. 2(30), p. 275-284, English

Author(s): C.Branca, S.Magaz\`{u}, F.Migliardo (Dipartimento di Fisica and INFM, Universit\`{a} di Messina, PO Box 55, I-98166 Messina, Italy)

The purpose of the present work is to highlight a number of recent experimental results that have contributed significantly to the research area of star polymer. Firstly we will refer to a very impressive SANS work by J.Peyrelasse, C.Perreur, J.-P.Habas and J.Fran\c{c}ois which is focused on the study of the structural properties of aqueous solutions of a star copolymer of PEO and PPO by Small Angle Neutron Scattering. Next, we will refer to some experimental advances reported in the work by R.Triolo, V.Arrighi, A.Triolo, P.Migliardo, S.Magaz\`{u}, J.B.McClain, D.Betts, J.M.DeSimone, H.D.Middendorf, which deals with a study of some dynamical properties of PS-$b$-PFOA aggregates in supercritical CO$_{2}$ by Quasi Elastic Neutron Scattering.

Key words: small angle neutron scattering, phase diagram, quasi elastic neutron scattering, diffusive dynamics
PACS: 61.12.Ex, 66.10.-x

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