{"product_id":"preparation-of-macroporous-monoliths-for-use-in-liquid-chromatography-von-anh-mai-nguyen","title":"Preparation of Macroporous Monoliths for Use in Liquid Chromatography","description":"\u003cp\u003eHigh performance liquid chromatogarphy (HPLC) is one of the major techniques in separation sciences. Faster separation and higher efficiency are required to meet ever-growing demands. Despite numerous efforts on improving mass transfer in particulate packings discontinuity seems to be the cornerstone. Macroporous continuous beds or monoliths are, therefore, a promising alternative to the particle medium. The work deals with the preparation of new monoliths used as support for HPLC stationary phase. Two different approaches were developed: one based on the polycondensation of epoxy resins which were dispersed in aqueous polyamine phase with the aid of a surfactant. The other involved a traverse of linear polyamides solutions around their upper critical solution temperatures (UCST). The polymers, dissolved in a solvent at temperatures higher than their UCSTs followed by slow cooling to below these temperatures to precipitate the polymers. Partly re-established hydrogen bonds resulted in the formation of crystallites that interconnected into a network structure. The study also deals with surface modifying for chromatographic applications.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838322346\"\u003e\u003ch3\u003eNew Approaches\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838322346","offer_id":39498918035549,"sku":"9783838322346","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/7698c5e2-a0a7-4603-bd9d-dcf4e84a4fbc.jpg?v=1757654508","url":"https:\/\/shop.autorenwelt.de\/products\/preparation-of-macroporous-monoliths-for-use-in-liquid-chromatography-von-anh-mai-nguyen","provider":"Autorenwelt Shop","version":"1.0","type":"link"}