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US07989505B2 Synthesis of columnar hydrogel colloidal crystals in water-organic solvent mixture 失效
在水 - 有机溶剂混合物中合成柱状水凝胶胶体晶体

Synthesis of columnar hydrogel colloidal crystals in water-organic solvent mixture
摘要:
The compositions of hydrogel colloidal crystals are made from mixing an aqueous suspension of poly-N-isopropylacrylamide (“PNIPAM”)-co-allylamine microgels with dichloromethane, forming a PNIPAM-co-allylamine/dichloromethane mixture. The PNIPAM-co-allylamine/dichloromethane mixture is incubated for a period of time at a given temperature, forming the colloidal crystal material. The colloidal crystals can be stabilized by diffusing a glutaric dialdehyde solution into the colloidal crystal material. The concentration of polymer matrix microgels can determine the orientation of random or columnar crystals.
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