Micro‐Domain Structure of the Siloxane‐Sulfone Segmented Polyesters: Statistical Investigations

The aliphatic siloxane‐arylidene sulfone‐segmented copolymers were investigated using an optical microscope at temperatures above their glass transitions. In the images obtained for thin layers, segregated micro‐domain structures were recognized and characterized statistically. Subsequently, the statistical size distribution of micro‐domains was described using the model of reversible aggregation. The distribution parameters related to the mean size and dispersion were shown to change regularly with the chemical composition of the copolymers. For thicker layers of the copolymers, a tendency to coalesce was revealed. In this case, two hierarchically organized statistical ensembles of micro‐domains were recognized.

[1]  M. Cazacu,et al.  Morphology and surface properties of side-chain modified polysulfones , 2004 .

[2]  I. Dierking,et al.  Time resolved statistical analysis of liquid crystal nucleus growth from the isotropic melt , 2004 .

[3]  H. Kilian,et al.  Transformations of the Micro-Domain Structure of Polyimide Films during Thermally Induced Chemical Conversion: Characterization via Thermodynamics of Irreversible Processes , 2003 .

[4]  T. Sukhanova,et al.  Statistical analysis of micro-domain ensembles at the surface of polyamic acid films during their conversion to polyimide , 2003 .

[5]  G. Riess,et al.  Micellization of block copolymers , 2003 .

[6]  S. Bronnikov,et al.  Stationary statistical size distribution of nematic droplets in the course of the isotropic liquid-nematic phase transition , 2002 .

[7]  H. Kilian,et al.  Model of reversible aggregation: universal features of fluctuating ensembles , 2001 .

[8]  M. Cazacu,et al.  New siloxane–arylidene sulfone segmented copolymers , 2000 .

[9]  H. H. Lee,et al.  Molecular-weight dependence of cylindrical microdomains , 1998 .

[10]  R. Metzler,et al.  AGGREGATE MODEL OF LIQUIDS , 1997 .

[11]  A. Dondos,et al.  Three models for chain conformation of block copolymers in solution and in solid state , 1996 .

[12]  Jozef Bicerano,et al.  Prediction of the Properties of Polymers from Their Structures , 1996 .

[13]  Bernard Howard Lavenda,et al.  Statistical Physics: A Probabilistic Approach , 1991 .

[14]  I. Yilgor,et al.  Polysiloxane containing copolymers: A survey of recent developments , 1988 .

[15]  G. Wilkes,et al.  Small angle x‐ray studies of siloxane‐urea segmented copolymers , 1986 .

[16]  I. Yilgor,et al.  Segmented organosiloxane copolymers: 2 Thermal and mechanical properties of siloxane—urea copolymers , 1984 .

[17]  G. Wilkes,et al.  Siloxane-urea segmented copolymers , 1982 .

[18]  M. Matzner,et al.  Hydrolytic stability of the SiOC linkage in organo‐siloxane block copolymers , 1974 .

[19]  C. N. Merriam,et al.  Polysulfone–polydimethylsiloxane block copolymers , 1971 .

[20]  R. M. Fuoss.  The physical chemistry of polymers. , 1948, American scientist.