amino acid activation

Development of low-yellowing and hydrophilic amino polysiloxane;

低黃變和親水性氨基聚硅氧烷的開發

Organic Synthesis Design of the Function and Application of Amino;

有機合成設計中氨基的功能及應用

Then BAPE-M was reduced into 4,4'-bis(4-amino phenoxy) diphenyl ether(BAPE) by hydrazine hydrate.

以4,4'-二羥基二苯醚、對硝基氯苯為原料,縮合制得4,4'-二(4-硝基-苯氧基)二苯醚,后采用水合肼還原得到4,4'-二(4-氨基-苯氧基)二苯醚(BAPE)單體;將其與PMDA(均苯四甲酸二酐)通過縮聚反應、熱環化制備了一種多苯氧基型聚酰亞胺。

Determination of amino groups of ammonia plasma modified polypropylene surface by a staining method;

染色法定量檢測氨氣等離子體改性膜表面的氨基

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 混合氣體等離子體處理了聚丙烯微孔膜 ,采用掃描電鏡觀察了處理前后膜的形貌變化 ;真空全反射紅外光譜和X射線光電子能譜證實在其表面接枝了大量活性氨基 ;用紫外光譜定量計算得知 ,所接枝的氨基濃度大約為 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.

研究了一種簡單的用化學選擇性來保護殼寡糖氨基的方法,用于制備N-鄰苯二甲?；瘹す烟?這種可溶性N-保護殼寡糖前驅體對殼寡糖進一步進行可控化學修飾非常重要。

The characteristics of difunctional modified polysiloxane,such as amido and polyether modified polysiloxane,amido and amid modified polysiloxane,amido and long chain alkane modified polysiloxane,epoxy and polyether modified polysiloxane,carboxy and long chain alkane modified polysiloxane were introduced,their synthesis process,application were described,and their prospects were predicted.

介紹了氨基和聚醚改性聚硅氧烷、氨基和酰氨基改性聚硅氧烷、氨基和長鏈烷烴改性聚硅氧烷、環氧基和聚醚改性聚硅氧烷及羧基和長鏈烷烴改性聚硅氧烷等雙官能基改性聚有機硅氧烷的特性 ,簡述了合成過程及應用工藝 ,并對其前景進行了預測。

Both the protection and deprotective group methods for the amino-group on side chain of a new N-pivot lariat crown ether were studied comparatively.

研究了一種新的氮支套素冠醚側鏈上氨基的保護和脫保護基方法，結果表明，由過量乙二胺與對甲苯磺酰氯反應得到的單保護乙二胺（Ｎ－對甲苯磺?；叶罚矗幔?，經Ｎ－烷基化環化反應，然后在氫化鋁鋰存在下脫除保護基，即可制得最佳產率的Ｎ－（２－氨基已基）單氮雜－１２－冠－４（１）。