SCLCPs Wherein the NLO Active Possess Mesogenic Properties Themselves

3 SCLCPs Wherein the NLO Active Moieties Possess Mesogenic Properties Themselves 

The factors that enhance the second order NLO activity of the molecules (high axial ratio, planarity, charged end groups) are es- 

Examples of electron-donating substituents are divalent radicals such as -0-, -S-, and -NR -, where R is hydrogen or methyl. Typical acceptor substituents are -NO2, -CN, and -CF3. The majority of SC polymers with NLO mesogenic groups have the donor substituent in the spacer chain and the 

There have been two main approaches toward the synthesis of SCLCPs containing NLO mesogenic groups  

1) Side groups with suitable polymerizable functional ends can be synthesized first, with subsequent polymerization. 

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