“…INTRODUCTION Environmental responsive polymers, the solubility and conformation of which could be adjusted by temperature, 1-3 pH, 4,5 ionic strength, 6,7 and electric or magnetic fields, 8,9 have developed greatly in recent years because of their prospective uses in biomedical and other applications, such as drug delivery, 10 tissue engineering, 11 electro-optical devices, 12 coatings, and textiles. 13 Especially, they have been most thoroughly studied in self-assembly and stimulus triggered drug delivery system due to their distinct advantages, such as improved drug solubility and controlled release, and so forth.…”