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2 protocols using n methyl diethanolamine

1

Synthesis of Polyurethane Coatings

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The deep black twill cotton fabric was kindly provided by Transfar Group Co., Ltd. 3-Chloropropene (98% purity) was purchased from Shanghai Macklin Biochemical Co., Ltd; N-methyl diethanolamine (AR), isophorone diisocyanate (IPDI, 98% purity), butanone oxime (MEKO, AR), 1-methyl-2-pyrrlione (NMP, AR), dibutyltin dilaurate (DBTDL, AR), diethylenetriamine (DETA, AR) were purchased from Tianjin Guangfu Fine Chemical Research Institute and used without further purification. Butanone (MEK, AR) purchased from Beijing Chemical Plant was dehydrated by immersed in 4 Å molecular sieve for 7 days. Polypropylene glycol (Mn = 1000, PPG1000, industrial grade, Tianjin petrochemical plant) was vacuum dried at 110 °C and 1–2 mmHg for 2 h before used.
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2

Synthesis and Characterization of Fluorinated Polyurethane Coatings

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Polycarbonate diol (PCDL, purity > 95%, Mn ~ 1000) was procured from Shanghai Huihua Industrial Co., Ltd., Shanghai, China. Isophorone diisocyanate (IPDI, purity > 99.5%, NCO% ≥ 37.5%) was supplied by Bayer Chemicals (Leverkusen, Germany). Dodecafluoroheptyl methacrylate was purchased from Shangfu Technology Co., Ltd., Shanghai, China. N-methyldiethanolamine (MDEA, ≥99.5%), 1,4-butanediol (BDO, ≥99.5%), methyl methacrylate (MMA, ≥99.5%), hydroxyethyl methacrylate (HEMA, ≥96%), trimethylolpropane (TMP, ≥99.5%), and dibutyltin dilaurate (DBTDL, ≥99.5%) were purchased from Macklin Inc., Shanghai, China. Dihydrazide adipate (ADH, ≥98%) and 2,6-tert-butyl-p-cresol (BHT, ≥99.5%) was supplied by Aladdin Reagent Co., Ltd., Shanghai, China. Glacial acetic acid (HAc, ≥90%) and ammonium persulfate (APS, ≥99%) were purchased from Shanghai Lingfeng Chemical Reagent Co., Ltd., Shanghai, China. Deionization is homemade in the laboratory. All the other reagents underwent further purification.
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