Sequential reordering

This effect is called melt-induced sequential reordering. The driving force for this transformation is supposed to be the resultant entropy increase. More about the chemical interactions in blends of condensation homopolymers and copolymers can be found in Fakirov (1999), a book devoted to these problems. 

Fakirov S, Sarkissova M and Denchev Z (1996) Sequential reordering in condensation copolymers. 3. Miscibility-induced sequential reordering in random copolyesteramides, Macromol Chem Phys 197 2889-2907. 

Youk J H and Jo W H (2001) Origin of miscibility-induced sequential reordering and crystallization-induced sequential reordering in binary copolyesters A Monte Carlo simulation, J Polym Sci Part... 

Denchev Z, Kricheldorf H R and Fakirov S (2001) Sequential reordering in condensation polymers, 6. Average block lengths from NMR analysis in PET/PA6 copolymers as revealed by NMR, Macromol Chem Phys 202 574-586. 

Denchev Z, Bojkova A, DuChesne A, Hocker H, Keul H and Fakirov S (1998) Sequential reordering in condensation polymers, 5) Preparation via transreactions and characterization of copolymers based on poly(caprolactone)-poly(2,2-dimethyl trimethylene carbonate) blends, Macromol Chem Phys 199 2153-2164. 

Fakirov S and Denchev Z (1999) Sequential reordering in condensation copolymers, in Transreactions in Condensation Polymers (Ed. Fakirov S) Wiley-VCH, Weinheim, Ch. 8, pp. 319-389. 

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