In 2022,Zhang, Dian; Kanezashi, Masakoto; Tsuru, Toshinori; Yamamoto, Kazuki; Gunji, Takahiro; Adachi, Yohei; Ohshita, Joji published an article in ACS Applied Materials & Interfaces. The title of the article was 《Development of Highly Water-Permeable Robust PSQ-Based RO Membranes by Introducing Hydroxyethylurea-Based Hydrophilic Water Channels》.Product Details of 534-03-2 The author mentioned the following in the article:
Copolymerization of bis[3-(triethoxysilyl)propyl]amine (BTESPA) and N-(2-hydroxyethyl)-N’-[3-(triethoxysilyl)propyl]urea (HETESPU) provided highly permeable robust reverse osmosis (RO) membranes that have an organically bridged polysilsesquioxane (PSQ) structure. The RO experiments with NaCl aqueous solution (2000 ppm) indicated that the introduction of hydroxyethylurea groups markedly improved the permeability of water (1.86 × 10-12 m3/m2sPa) to approx. 19 times higher than that of a membrane prepared via the BTESPA homopolymerization, with NaCl rejection remaining nearly unchanged (96%). This is the highest water permeability obtained so far for PSQ-based membranes that show higher than 90% NaCl rejection. The improvement of water permeability is likely due to aggregation through hydrogen bonding in the PSQ layer, which can be regarded as a hydrophilic water channel.2-Aminopropane-1,3-diol(cas: 534-03-2Product Details of 534-03-2) was used in this study.
2-Aminopropane-1,3-diol(cas: 534-03-2) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Product Details of 534-03-2
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