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Pentaerythritol core, phosphonic acid terminated dendrimer and its preparation method
Pentaerythritol core, phosphonic acid terminated dendrimer and its preparation method
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机译:季戊四醇核,膦酸封端的树枝状大分子及其制备方法
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摘要
A pentaerythritol core, phosphonic acid terminated dendrimer, its preparation method and application are provided. A preparation method of the pentaerythritol core, phosphonic acid terminated dendrimer (PETA-ADA-12PO3H2) comprises steps of processing Michael addition reaction on pentaerythritol tetraacrylate (C(CH2OCOCH2=CH2)4) and alkylidene diamine (NH2CH2(CH2)nNH2), wherein n is an integer from 1 to 5, so as to obtain pentaerythritol core, amino group terminated dendrimer, and modifying the amino group by methylene phosphonic acid to obtain the PETA-ADA-12PO3H2 having a chemical formula of C[CH2OCOCH2CH2N(CH2PO3H2)CH2(CH2)nN(CH2PO3H2)2]4, wherein n is an integer from 1 to 5. The PETA-ADA-12PO3H2 has a high calcium tolerance, and excellent inhibiting efficiency of calcium carbonate, calcium sulfate and barium sulfate, which is applied in inhibiting the formation and deposition in the industrial water systems of circulating cooling water, oilfield flooding and reverse osmosis, and particularly suitable for water treatment with high calcium tolerance.
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机译:提供了季戊四醇核,膦酸封端的树枝状大分子及其制备方法和应用。季戊四醇核心,膦酸封端的树枝状大分子(PETA-ADA-12PO 3 Sub> H 2 Sub>)的制备方法包括对季戊四醇四丙烯酸酯(C(CH 2 Sub> OCOCH 2 Sub> = CH 2 Sub>) 4 Sub>)和亚烷基二胺(NH 2 Sub> CH 2 Sub>(CH 2 Sub>) n Sub> NH 2 Sub>),其中n是1到5的整数,因此为获得季戊四醇核心,用氨基端基的树枝状大分子,并用亚甲基膦酸修饰氨基,得到具有化学式的PETA-ADA-12PO 3 Sub> H 2 Sub> C [CH 2 Sub> OCOCH 2 Sub> CH 2 Sub> N(CH 2 Sub> PO 3 Sub> H 2 Sub>)CH 2 Sub>(CH 2 Sub>) n Sub> N(CH 2 Sub> PO < Sub> 3 Sub> H 2 Sub>) 2 Sub>] 4 Sub>,其中n是1到5的整数。PETA-ADA- 12PO 3 Sub> H 2 Sub>具有很高的钙耐受性,并且对碳酸钙的抑制作用极佳,硫酸钙和硫酸钡,用于抑制循环冷却水,油田驱油和反渗透在工业用水系统中的形成和沉积,特别适用于高钙耐受性的水处理。
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