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1. The acyl X substituents are invariably aromatic, and an electron-rich X group is best.

2. The acyl substituents of phospholipids provide the hydrophobic environment that is necessary for the function of intrinsic membrane proteins.

3. The substituent effect was discussed.

4. The experiments show that large substituent group on Cp is favorable to the formation of CTSs with low ratio of ferrocenyl:POM.

5. When the substituent at the benzene ring and the N atom of aniline, the HDAC inhibition activity is different from that of SAHA.

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6. So man insert the substituent to benzene or pyrazoline in order to improve the wet photostability. On the other hand, 1,3-diaryl-2-pyrazoline is the important medical intermediate.

7. Modifications of PPV by some substituent groups such as alkoxyl, alkyl, aromatic-alkyl may improve their dissolution, process, regulation of the colour, conductivity and nonlinear optics.

8. These results indicated that a suitable substituent at the 2-position of pyridine ring and a well-fit group at the 3-position of acrylate were both essential for hi.

9. The results showed that chloric substituent in polymer chains prevented the chains from further chlorination.

10. These results showed that the change of end substituents X and side substituent Y of benzene ring in the molecules had important effects on mesogenic properties of these liquid crystalline compounds.

11. This invention relates to a preparation method of substituent glutaric acid anhydride.

12. The different effects of nitro and chlorine substituent groups on the phenols degradation were also discussed in this paper.

13. The size and steric hindrance of substituent of porphyrin is one of the crucial factors to affect the interaction between porphyrins and DNA.

14. It was found that the substituent attached at the phenyl exerted influence on the yields of synthesis , on the experimental conditions of sulphonation and on the acid-base properties of the reagent.

15. The 1,3,2,4-dithiadiazoles show a 1:1:1 triplet due to the spare electron being largely localised at the nitrogen atom remote from the ring substituent.

16. The appendix by Bouveault considered carboxyl groups and its derivatives and substituents.

17. The absorption, emission maximum and the fluorescence lifetime changed as the Hammett substituent constant in folding linear.

18. Results showed that this kind of compounds has excellent photobleaching property. The bleaching effect of phthalocyanines containing halogen substituent is better than the one that is not substituted.

19. Light fastness of anthraquinone dyes was affected by many factors and it was mainly determined by dye structures, such as the kinds and position of substituent groups, dipole moment of the molecule.

20. For reactive dyes, there is no revolution in chromophore parent and reactive group, the focuses are on the substituent group to improve the dyeing behaviors and commercialized technology.

21. The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.

22. The tacticity of polymers is mainly influenced by the polarity of substituent group of vinyl monomer.

23. Results show that they have good mechanical and mining properties with low cost. It is a good substituent of YG9Cand YG11C grade cemented carbide mining bits.

24. Excellent selectivity was obtained for the separations of polar position isomers. The benzamide substituent group on crown ether makes the stationa...

25. The invention discloses a preparation method of a benzofuran ketones compound containing indoles substituent groups.

26. The product is high in degree of substitution, whose substituent distribute equally, has characteristics of high viscosity, high content of sodium, high acid-viscosity ratio.

27. The fluorescence intensity of porphyrin also relates to the substituent positions on the phenyl groups.

28. Standard formation enthalpies of substituted benzene and benzoic acids derivates are related to the primary effect, secondary effect and the barrier point of the substituent.

29. The corresponding aldehyde acetals were obtained in almost quantitative yields when alcohols were treated with aromatic aldehydes bearing an electron-withdrawing substituent such as a nitro group.

30. Property dependence of ABA triblock copolymers on the terminal substituent of azobenzene was investigated.