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- Keywords pentaerythritol dialdehyde;pentaerythritol diketone;microwave irradiation;ammonium hydrogen sulfate;synthesis; 季戊四醇双缩醛;季戊四醇双缩酮;微波照射;硫酸氢铵;合成;
- pentaerythritol dialdehyde 季戊四醇双缩醛
- Aim To study the synthetic method for the glutaric dialdehyde. 目的研究戊二醛的新合成方法。
- A waterborne multicolor paint is prepared by chitosan in acetic acid solution, mixing with short fiber and crosslinked by glutaric dialdehyde. 甲壳糖醋酸水溶液为成膜剂,掺入短纤维后用戊二醛交联得到多彩涂料。
- The yieldsof pentaerythritol and dipentaerythritol were above 20percent under the optimum reaction parame... 在此工艺条件下,单、双季戊四醇的收率均在20%25以上。
- Novelty intumescent flame retardant(IFR) was made from phosphoric acid,pentaerythritol(PER) and melamine. 使用磷酸、季戊四醇、三聚氰胺合成了一种膨胀型阻燃剂。
- The concentration of maleic dialdehyde(MDA) and the activity of superoxide didmutase(SOD) and myeloperoxidase(MPO) in gut were determined. 并检测肠组织丙二醛(MDA)含量、超氧化物歧化酶(SOD)和髓过氧化物酶(MPO)活性的变化。
- Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid. 由季戊醇、氢溴酸制备了二溴新戊二醇。
- The yieldsof pentaerythritol and dipentaerythritol were above 20 percent under the optimum reaction parameters. 在此工艺条件下,单、双季戊四醇的收率均在20%25以上。
- The dialdehyde starch was prepared to condense with PVA to form a environmental nontoxic PVAc emulsion adhesive. 研究了双醛淀粉作为含醛物料与白乳胶中聚乙烯醇进行缩合反应,制备了环保型聚醋酸乙烯酯乳液胶粘剂。
- In the production of polyurethane paint,pentaerythritol is em ployed in the place of alkyd resin . 介绍以季戊四醇代甘油制聚氨酯漆醇酸组份的配方、工艺及树脂性能。
- An economical and practical detector in pentaerythritol production, its principle and application are introduced. 介绍季戊四醇生产中比较经济实用的一种检测装置,对其原理和实际应用加以论述。
- Discussions were made on optimal conditions for condensation reaction between dialdehyde starch(DAS) and PVA to form DAS-PVA glue. 将双醛淀粉(DAS)与聚乙烯醇(PVA)进行缩合反应,探讨了DAS-PVA胶粘剂合成的最佳条件。
- The content of dialdehyde starch was determined by spectrophotometry with the color agent alkaline fuchsin-sulfurous acid. 以碱性品红-亚硫酸为显色剂,用分光光度法对双醛淀粉含量的测定条件、灵敏度、回收率进行研究。
- The easy procedure provided a neat environment-friendly synthetic method for pentaerythritol diacetals in high yields and the catalyst was reusable. 该方法操作简便,收率高,催化剂可重复使用,是一种环境友好型催化反应。
- The adsorption of urea nitrogen onto dialdehyde cellulose (DAC) under catalysis of immobilized urease in gelatin (IU) was studied in batch system. 研究了在固定化脲酶催化作用下双醛纤维素对尿素氮的吸附平衡和动力学。
- But the waterproof is in high to low order as: pentaerythritol phosphate> aminated pentaerythritol phosphate> ammonium monoacid phosphate. 耐水阻燃性作用大小为:磷酸季戊四醇缩合物>磷酸季戊四醇缩合物的铵盐>磷酸氢二铵。
- Also,remarkable negative linear relationship between the dialdehyde content and relevant the breaking strength of oxidative cotton fibre is obtained. 采用高碘酸钠对棉纱线进行选择性氧化,对比研究了不同氧化条件下棉纱线和单根棉纤维的力学性能。
- Dibenzalpenlpentaerythritol was directly synthesized from benzaldehyde and pentaerythritol under microwave irradiation with sulfates used as catalyst. 在微波辐射下用硫酸盐催化合成了标题化合物。
- Conclusion Dialdehyde starch (DAS) not only improves the mechanism function of PLA, but also has good effect on cells. 改性聚乳酸网架上有双层细胞生长,生长的细胞与网架接触,并且在其表面形成较为明显而连续的细胞层。