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The Structure Of Cyclodextrins

The cyclodextrin molecule has a conical hollow cylindrical annular structure, in its hollow structure, the upper end of the outer side (larger opening ends) is composed of C2 and C3, the lower end (small opening ends) is composed of the C6, and the hydrophilicity is formed by the shielding effect of the-key in the cavity. It has neither a reduction end nor nothing but a reductive end, and is stable in alkaline medium, but the strong acid can be cracked by the hydrolysis of α-amylase, which can not be hydrolyzed by β-amylase, and the tolerance of acid and general amylase is stronger than that of amylose. In aqueous solution and aqueous solution, it can crystallize well, without a certain melting point, heating to about 200 ℃ start decomposition, have good thermal stability, no hygroscopicity, but easy to form a variety of stable hydrate; its hydrophobic voids can be embedded in a variety of organic compounds, Forming a cladding complex, and altering the physical and chemical properties of the envelope; it is possible to chemically modify the cyclodextrin molecule by submitting a chain of many functional groups or by linking the cyclodextrin to a polymer, or by using Cyclodextrin as a monomer for polymerization.

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