Polarization-selective photochromic reaction in uniaxially oriented polymer matrix

Autor:	A. Miyake, T. Soen, N. Togoh, Qui Tran Cong
Rok vydání:	1992
Předmět:	chemistry.chemical_classification Anthracene Polymers and Plastics Dopant Organic Chemistry Concentration effect Polymer Photochemistry Inorganic Chemistry chemistry.chemical_compound Photochromism chemistry Polymer chemistry Materials Chemistry Hydroxymethyl Irradiation Methyl methacrylate
Zdroj:	Macromolecules. 25:6568-6573
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma00050a028
Popis:	Selectivity of the intramolecular photodimerization of a bichromophoric molecule, 9-(hydroxymethyl)-10[(naphthylmethoxy)methyl]anthracene (HNMA), in the glassy state of poly(methyl methacrylate) (PMMA) was examined upon irradiation with linearly polarized light. It was found that upon increasing dopant concentration, the maximum induction efficiency shifts toward the lower temperature side. The same bahavior was also observed as the elongational ratio of the PMMA increases. Uniaxial elongation also results in an increase of the induction efficiency. On the other hand, the induction efficiency grows exponentially with irradiation time
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d1f8603b8c97f0b092f892e1ef828da https://doi.org/10.1021/ma00050a028 Zobrazit plný text záznamu