Cotton fabrics containing porous organic cages
AssigneeThe Regents of the University of California
InventorsGang Sun, Peixin Tang
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Abstract
Highly porous nucleophilic organic cages (Nu-POC) were in-situ synthesized on cotton fibers by a condensation reaction between cyanuric chloride and melamine, and the products were employed as a robust wearable and flexible detoxifying protective material (denoted as POCotton) for vaporous pesticides. The covalent growth of Nu-POC particles on surfaces of cotton fibers retained the physical characteristics of Nu-POC to the greatest extend, which include specific surface area and porosity, while the cotton fabrics still remained wearable. The resultant POCotton can repeatedly adsorb fumigant vapors instantly (i.e., equilibrium reached within one minute) and massively (i.e., adsorption capacity at 596.88 mg/g of methyl iodide).
Claims9
A method for detoxifying and/or removing a fumigant vapor from an environment, the method comprising:
- contacting the fumigant vapor with a triazine-based nucleophilic porous organic cage grafted on a cotton fiber (POCotton), comprising:
- a six-membered triazine ring cage grafted to a cotton fiber according to formula I:
- wherein each represents attachment to another triazine ring cage, a cotton fiber, NH2 or H;
- and wherein each represents between 0 and 30 triazine ring cages before termination, to allow the detoxification or removal of the fumigant vapor.
A method of incorporating novel functional agents into a POCotton-triazine-based nucleophilic porous organic cage grafted on a cotton fiber, comprising:
- providing a six-membered triazine ring cage grafted to a cotton fiber according to formula I:
- wherein each represents attachment to another triazine ring cage, a cotton fiber, NH2, or H;
- wherein each represents between 0 and 30 triazine ring cages before termination;
- and
- contacting the six-membered triazine ring cage grafted to a cotton fiber with a functional agent to thereby incorporate the functional agent.
Dependencies are inferred from the claim text.