Development of low-yellowing and hydrophilic amino polysiloxane;
低黄变和亲水性氨基聚硅氧烷的开发
Organic Synthesis Design of the Function and Application of Amino;
有机合成设计中氨基的功能及应用
Then BAPE-M was reduced into 4,4'-bis(4-amino phenoxy) diphenyl ether(BAPE) by hydrazine hydrate.
以4,4'-二羟基二苯醚、对硝基氯苯为原料,缩合制得4,4'-二(4-硝基-苯氧基)二苯醚,后采用水合肼还原得到4,4'-二(4-氨基-苯氧基)二苯醚(BAPE)单体;将其与PMDA(均苯四甲酸二酐)通过缩聚反应、热环化制备了一种多苯氧基型聚酰亚胺。
Determination of amino groups of ammonia plasma modified polypropylene surface by a staining method;
染色法定量检测氨气等离子体改性膜表面的氨基
Attenuated total reflectance Fourier transform infrared spectroscopy (ATR FTIR), X ray photoelectron spectroscopy (XPS) and ultra violet (UV) spectra demonstrated the success of amino groups grafting.
以H2 和N2 混合气体等离子体处理了聚丙烯微孔膜 ,采用扫描电镜观察了处理前后膜的形貌变化 ;真空全反射红外光谱和X射线光电子能谱证实在其表面接枝了大量活性氨基 ;用紫外光谱定量计算得知 ,所接枝的氨基浓度大约为 0 5μmol/cm2 。
A simple and convenient procedure for chemoselective protection of the amino groups of chitosan oligosaccharide was developed to prepare N-phthaloyl-chitosan oligosaccharide.
研究了一种简单的用化学选择性来保护壳寡糖氨基的方法,用于制备N-邻苯二甲酰化壳寡糖,这种可溶性N-保护壳寡糖前驱体对壳寡糖进一步进行可控化学修饰非常重要。