{"title":"树脂-聚乙二醇共聚物合成聚氨酯及其分析研究","authors":"Maiada Abdulla Adnan","doi":"10.31257/2018/JKP/2019/110118","DOIUrl":null,"url":null,"abstract":"Article history: Received: 8 JUL, 2018 Accepted: 13 NOV, 2018 Available Online: 26 JUL, 2019 Resol novolac resin was prepared by condensation of novolac resin with formalin solution in the presence of sodium hydroxide as catalyst, then new copolymer were prepared by reaction of this resin with polyethylene glycol. This new copolymer was supported on polyurethane foam as solid phase and applied to separation a mixture of Cr(III) and Cd(II) ions from aqueous solutions prior to the determination by flame atomic absorbtion spectrometry. The optimum conditions of some parameters effect on recovery of the ions such as acidity, eluent condition, shaking time, and eluent flow rate were investigated. At pH 4,5, the maximum recovery (90%) of Cd(II) by stripping with 40 ml of (1N) nitric acid ,while for Cu (11) was 80 % with 50 mL of (2N) nitric acid .On the other hand thermal stability for the prepared polyurethane was evaluated by TGA. DOI.: http://dx.doi.org/10.31257/2018/JKP/2019/110118","PeriodicalId":16215,"journal":{"name":"Journal of Kufa - Physics","volume":"34 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Synthesis of Polyurethane Based on (Resol Novolac Resin- Polyethylene Glycol) Copolymer and Their Analytical Study\",\"authors\":\"Maiada Abdulla Adnan\",\"doi\":\"10.31257/2018/JKP/2019/110118\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Article history: Received: 8 JUL, 2018 Accepted: 13 NOV, 2018 Available Online: 26 JUL, 2019 Resol novolac resin was prepared by condensation of novolac resin with formalin solution in the presence of sodium hydroxide as catalyst, then new copolymer were prepared by reaction of this resin with polyethylene glycol. This new copolymer was supported on polyurethane foam as solid phase and applied to separation a mixture of Cr(III) and Cd(II) ions from aqueous solutions prior to the determination by flame atomic absorbtion spectrometry. The optimum conditions of some parameters effect on recovery of the ions such as acidity, eluent condition, shaking time, and eluent flow rate were investigated. At pH 4,5, the maximum recovery (90%) of Cd(II) by stripping with 40 ml of (1N) nitric acid ,while for Cu (11) was 80 % with 50 mL of (2N) nitric acid .On the other hand thermal stability for the prepared polyurethane was evaluated by TGA. DOI.: http://dx.doi.org/10.31257/2018/JKP/2019/110118\",\"PeriodicalId\":16215,\"journal\":{\"name\":\"Journal of Kufa - Physics\",\"volume\":\"34 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-06-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Kufa - Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31257/2018/JKP/2019/110118\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Kufa - Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31257/2018/JKP/2019/110118","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
文章历史:收稿日期:2018年7月8日收稿日期:2018年11月13日可选日期:2019年7月26日以氢氧化钠为催化剂，将新聚甲醛树脂与福尔马林溶液缩合制备出新聚甲醛树脂，再与聚乙二醇反应制备出新聚甲醛树脂。这种新型共聚物作为固相支撑在聚氨酯泡沫上，用于分离水溶液中的Cr(III)和Cd(II)离子混合物，然后用火焰原子吸收光谱法测定。考察了酸度、洗脱条件、振荡时间、洗脱流量等参数对离子回收率影响的最佳条件。在pH为4,5的条件下，用40 ml (1N)硝酸溶出Cd(II)的最大回收率为90%，用50 ml (2N)硝酸溶出Cu(11)的最大回收率为80%。另一方面，用热重分析评价了制备的聚氨酯的热稳定性。DOI。: http://dx.doi.org/10.31257/2018/JKP/2019/110118
Synthesis of Polyurethane Based on (Resol Novolac Resin- Polyethylene Glycol) Copolymer and Their Analytical Study
Article history: Received: 8 JUL, 2018 Accepted: 13 NOV, 2018 Available Online: 26 JUL, 2019 Resol novolac resin was prepared by condensation of novolac resin with formalin solution in the presence of sodium hydroxide as catalyst, then new copolymer were prepared by reaction of this resin with polyethylene glycol. This new copolymer was supported on polyurethane foam as solid phase and applied to separation a mixture of Cr(III) and Cd(II) ions from aqueous solutions prior to the determination by flame atomic absorbtion spectrometry. The optimum conditions of some parameters effect on recovery of the ions such as acidity, eluent condition, shaking time, and eluent flow rate were investigated. At pH 4,5, the maximum recovery (90%) of Cd(II) by stripping with 40 ml of (1N) nitric acid ,while for Cu (11) was 80 % with 50 mL of (2N) nitric acid .On the other hand thermal stability for the prepared polyurethane was evaluated by TGA. DOI.: http://dx.doi.org/10.31257/2018/JKP/2019/110118
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