2-Hydroxyethyl methacrylate (HEMA) improved colloids of silica/carbon dots (SiO2/HMCDs) were used by means of new translucent, nontoxic cross-linking centers comprising two non-toxic components, silica colloids and carbon dots. The direct photopolymerization of a mixture of acrylic acid (AA), ...
丙烯酰胺-丙烯酸共聚物 (P(AM-co-AA))水凝胶 西安瑞禧生物科技有限公司经营的产品种类包括有:合成磷脂、高分子聚乙二醇衍生物、嵌段共聚物、磁性纳米颗粒、纳米金及纳米金棒、近红外荧光染料、活性荧光染料、荧光标记的葡聚糖BSA和链霉亲和素、蛋白交联剂、小分子PEG衍生物、点击化学产品、树枝状聚合物、环糊精衍生物...
温度和p H响应型水凝胶在蒸馏水和0.9%Na Cl溶液中随温度变化的平衡溶胀曲线如图2所示。由图2可知, 水凝胶的平衡溶胀率随温度的的增加呈现下降的趋势, 水凝胶表现为热缩敏感性质, 这是由于水凝胶中含有亲水组分AA、AM和疏水组分DAAM, 水凝胶呈现两亲性。水凝胶的溶胀过程是水分子向凝胶内部扩散与凝胶侧链上的亲水...
(PVA)包覆层赋予纤维表面,获得新型纤维负载型Fenton反应催化剂;并考察PEI,PVA包覆层对纤维形貌以及催化稳定性的影响.结果表明:PEI可以显著增强P(AA-co-HEMA)在成纤过程中的支撑性,使纤维由扁平结构过渡至近圆形结构,同时赋予纤维内部疏松多孔结构,改善其负载能力;在纤维表面引入硼酸交联PVA凝胶层后,重复使用13次时,...
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结果表明,P(AAm—co-NIPAAm—co-DMAA)三元共聚水凝胶和P(NIPAAm—co-AAm)/PDMAA互穿聚合物网络(IPN)水凝胶都具有热缩温敏性,DMAA的摩尔分数增加(7%~22%),两种水凝胶的LCST从40℃升高到45℃;三元共聚水凝胶平衡溶胀比(SR)由8.33***4.50,IPN水凝胶平衡溶胀比(SR)由5.6***.66;两种水凝胶都能在30min内...
此外,丙烯酸 (AA)用量、交联剂 BIS用量对疏 水改性智能水凝胶P(HEMA-NaAA—DiAC )的溶胀行为也有一定的影响。 参考文献 [I]GaoDG,MaJZ,GuoHQ.SwellingPropertiesofpH—ResponsiveHydmphobieallyModifiedHydrogelsofPoly(methacrylic Acid.co.diallylammoniumsalt)inAqueousSolution[J].PolymAdvTechnol,2012,23:1494-...
PolyHEMA assay The 6-wells plate was coated with 70 μl of 20 mg/ml polyHEMA solution in 96% ethanol overnight in RT. In the next step, 4 ·104 cells in standard medium were seeded on the plate. At selected time points the floating cells were collected, washed with cold PBS, ...
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