Academic Journal
Photoinduced supramolecular chirality in glassy nematic linear and star shaped methacrylic azopolymers obtained by ATRP
| العنوان: | Photoinduced supramolecular chirality in glassy nematic linear and star shaped methacrylic azopolymers obtained by ATRP |
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| المؤلفون: | Loris Giorgini, Fabio Paris, Luigi Angiolini, Rosa M. Tejedor, Elisabetta Salatelli, Joaquín Barberá, Tiziana Benelli |
| سنة النشر: | 2009 |
| المجموعة: | Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
| مصطلحات موضوعية: | Polymers and Plastics, Physical and Theoretical Chemistry, General Chemical Engineering |
| الوصف: | The induction of chirality in achiral liquid crystalline azoaromatic polymers with circularly polarized light (CPL) has been studied on well-defined macromolecular derivatives with different molecular structures, synthesized by atom transfer radical polymerization (ATRP). Two methacrylic homopolymers have been investigated: a linear and a three arms star polymer. Both the polymeric samples are featured by low polydispersity and similar average polymerization degree, so that structure-properties correlations are made possible. Irradiation with CPL of one handed rotation sense of casted films and a planar cell of these polymers in the glassy nematic phase allowed to ascertain by UV-Vis and CD spectroscopy the formation of a supramolecular chiral structure with high chirality induced into the material. The results are interpreted in terms of the structural features of the polymers. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | url:https://www.openaccessrepository.it/communities/itmirror; https://www.openaccessrepository.it/record/113059 |
| DOI: | 10.1515/epoly.2009.9.1.553 |
| الاتاحة: | https://www.openaccessrepository.it/record/113059 https://doi.org/10.1515/epoly.2009.9.1.553 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.9FCCFD2F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1515/epoly.2009.9.1.553 |
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