Temperatūras ietekme uz azobenzolu molekulu optiksi ierosinātām īpašībām plānās polimēra kārtiņās

6533b871fe1ef96bd12d1378

RESEARCH PRODUCT

Temperatūras ietekme uz azobenzolu molekulu optiksi ierosinātām īpašībām plānās polimēra kārtiņās

Mārtiņš Narels

subject

description

Azobenzolu atvasinājumi ir plaši pazīstami ar to īpašību veikt izomerizāciju gaismas ietekmē. Tas nozīmē, ka azobenzolu molekulas fotoreakcijā ir iespējama pārslēgšanās starp diviem stāvokļiem – trans un cis izomēru. Dažādu efektu novērošanai, parasti azobenzolu savienojumi tiek ievietoti polimēra matricā. Pārslēgšanās efektu pētījumi pie dažādām temperatūrām var dot skaidrojumu par notiekošiem procesiem polimērā. Darbā izmantots oriģināls azobenzolu atvasinājums ar dicikloheksilsulfamoila grupu. Molekulas tika iejauktas polimēra matricā dažādās koncentrācijas un izveidotas plānas kārtiņas. Fotoizomerizācijas process tika novērots pie temperatūrām no 100K līdz 300K. Darbā ir parādīts, ka notiek divi fotoizomerizācijas procesi. Viens saistīts ar molekulām, kuras atrodas polimēra dobumos, un otrs - ar molekulām, kurām klāt ir polimēra ķēdes.

year	journal	country	edition	language
2013-01-01

https://dspace.lu.lv/dspace/handle/7/16214

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