Post and prepolymerization strategies to develop novel photochromic poly(esterimide)s

Ewa Schab-Balcerzak , Mariola Siwy , Bozena Jarzabek , Anna Kozanecka-Szmigiel , Krzysztof Świtkowski , Bronisław Pura

Abstract

This paper reports novel photoresponsive, processable poly(esterimide)s functionalized with the azobenzene and tricyanovinylene groups. Post and prepolymerization strategies were utilized for preparation of the new photochromic polymers with imide rings. The postpolymerization method of azopolymer synthesis included a functionalization of precursor poly(esterimide) containing dialkylaminophenyl groups with diazonium salt of aniline. The precursor poly(esterimide) was obtained from synthesized 2,2′[N-phenylethyloaniline-di(4-estro-1,2-dicarboxylic)]anhydride and 4,4′-methylene bis(2,6-dimethylaniline). The prepolymerization strategy based on polycondesation of 2,4-diaminoazobenzene with two dianhydrides, that is, with or without the azobenzene group. The new dianhydride with azobenzene unit was obtained. The reaction of post-tricyanovinylation was carried out for substitution of prepared polymers with tricyanovinylene groups. The synthesized polymers were characterized and evaluated by FTIR, 1H NMR, X-ray, UV-Vis spectroscopies, and DSC. The polymers exhibited glass transition temperatures in the range of 119–208°C and good solubilities in common organic solvents, providing optical-quality films. Thermal stability of the polymers films was investigated by UV-Vis spectroscopy. Preliminary investigations of the optical anisotropy in chosen poly(esterimide)s were carried out by photoinduced birefringence measurements. Relatively high photoinduced birefringence (Δn = 0.01) was measured for polyimide with covalently bonded azobenzene substituted with strong acceptor group. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Author Ewa Schab-Balcerzak - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Ewa Schab-Balcerzak,,
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, Mariola Siwy - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Mariola Siwy,,
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, Bozena Jarzabek - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Bozena Jarzabek,,
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, Anna Kozanecka-Szmigiel (FP / SRD)
Anna Kozanecka-Szmigiel,,
- Structural Research Division
, Krzysztof Świtkowski (FP / SRD)
Krzysztof Świtkowski,,
- Structural Research Division
, Bronisław Pura (FP / SRD)
Bronisław Pura,,
- Structural Research Division
Journal seriesJournal of Applied Polymer Science, ISSN 0021-8995, (A 25 pkt)
Issue year2011
Vol120
No2
Pages631-643
Publication size in sheets0.6
Keywords in EnglishAzobenzene chromophores, Photochromic polymers, photoinduced anisotropy, Polyimides
ASJC Classification2505 Materials Chemistry; 2507 Polymers and Plastics; 2508 Surfaces, Coatings and Films; 1600 General Chemistry
DOIDOI:10.1002/app.33202
URL http://onlinelibrary.wiley.com/doi/10.1002/app.33202/abstract
Languageen angielski
Score (nominal)25
Publication indicators Scopus Citations = 16; WoS Citations = 16; Scopus SNIP (Source Normalised Impact per Paper): 2011 = 0.969; WoS Impact Factor: 2011 = 1.289 (2) - 2011=1.413 (5)
Citation count*11 (2015-05-28)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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