New Second-Order Nonlinear Optical Polymers Derived from AB2 and AB Monomers via Sonogashira Coupling Reaction

✍ Scribed by Zhong'an Li; Wenbo Wu; Cheng Ye; Jingui Qin; Zhen Li

• Book ID: 102489249
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 265 KB
• Volume: 211
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200900605

✦ Synopsis

Abstract

In this paper, a facile route was designed to prepare a new AB~2~‐type polymer P1 via simple Sonogashira coupling reaction, also its corresponding linear analog (P2) was obtained from AB monomer for comparison. Despite the relatively lower loading density of the effective chromophore moieties, P1 demonstrated higher second‐harmonic coefficient (153.9 pm · V^−1^) than that of P2 (98.2 pm · V^−1^), due to the three‐dimensional spatial isolation effect of the hyperbranched structure. The good results of P2 also indicated that the ladder shape may help to solve the problem existing in main‐chain polymers, the low poling efficiency.

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