Sequence of Block-Copolymer

It appears clearly difficult to obtain a well-defined soluble copolymer, even forming a micelle structure. Besides, copolymer made with PA sequence often exhibits degradation implying that the material must be kept under inert atmosphere (20,21,25). 

Garrin, G. Baker, S. Ramakrishnan, P. Timmins, ICSM 90 Tubingen. 

18 C Plachetta, R.C. Schulz, Makromol. Chem., Rapid. Commun., 3,815 (1982). 

Francois, Makromol. Chem. Rapid Commun., 9,411 (1988). 

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Note that this phase sequence, can be universally observed in the thermotropic phase sequence of block copolymers and low-molecular-mass amphiphiles as well as in lyotropic detergent solvent systems. In addition to the phase sequence described above, several additional intermediate phases can occur at the transitions between different mesophase morphologies. The bicontinuous cubic phases Cub are often also included in these intermediate phases. 

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