Photoswitchable architectural polymer: Toward azo‐based polyamidoamine side‐chain dendritic polyester

Wiley - Tập 39 Số 23 - Trang 4182-4188 - 2001
Samaresh Ghosh1, A. K. Banthia1
1Materials Science Centre Indian Institute of Technology Kharagpur-721302, India

Tóm tắt

AbstractA versatile approach to the synthesis of novel polyamidoamine (PAMAM) side‐chain dendritic polyester (SCDPE) possessing azobenzene motifs in the polymeric core is described and displayed reversible cis–trans (E/Z) isomerization upon exposure to UV light. A polymerization reaction was conducted in solution using ester‐terminated PAMAM dendritic diol (1a, G 3.5) and azobenzene dicarboxylic acid chloride in the presence of triethylamine. PAMAM dendritic diol 1a as well as SCDPE (1) were thoroughly characterized by means of IR and NMR (1H and 13C) spectroscopies. The intrinsic viscosity of 1 at 36 °C in CHCl3 was found to be 0.38 dl/g. © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 4182–4188, 2001

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Wiley

Tập 39 Số 23

4182-4188

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