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transitionhadoccurred.Thecontact angle and swelling saturationratioofthe hydrogets decreasedwiththemasscontemsofNIPAM increasing.Therefore,thehydrophilic and the delayedswellingperformance ofPEGDA/NIPAM hydrogels hadincreased. Thereleasebehaviorof aspirin
Fig 5 Infl uence of monomer ratio on contact angle and equilibrium water content of t he copolymer hy2 drogel s at 25 ℃ 4 结论 采用烯腈烷基化再部分水解的方法合成了 NI2 PAM 单体,并应用 FT2IR、 1 H NMR 和 MS 进行了表 征,表征结果符合 NIPAM 的分子结构式; 以 IRGA2 ...
Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam. Conditions for safe storage, including any incompatibilities Keep container tightly closed in a dry and well-ventilated place. See More N-...
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Cu(II) ion adsorption parameters (adsorbent dosage, contact time, pH and metal ion concentration) were studied, and the equilibrium data were evaluated using adsorption isotherm models; Freundlich isotherm gave the best fit. Cu(II) adsorption performance of poly(NaSS-co-MA-co-AAm) and poly(...
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Among the various methods of membrane distillation including vacuum membrane distillation (VMD), air gap membrane distillation (AGMD), direct contact membrane distillation (DCMD) and sweep gas membrane distillation (SGMD), VMD has received much attention due to its low heat loss, complete separation...
Table1.2theclassificationofcontactlenses 玻璃接触镜: 合成树脂材料接触 半合成树脂接触 亲水性接触镜:也称软镜;主 ………。 主要以玻璃 镜:又称硬镜;主要 镜:玻璃与合成 要以HE～LA、NVP、为材料 接触镜材料 为材料制成 指PMMA为主要材料 树脂制造的接触 制成的接触镜。