| Texto completo | |
| Autor(es): Mostrar menos - |
Bregadiolli, Bruna A.
;
Ramanitra, Hasina H.
;
Ferreira, Rodrigo Marques
;
Corcoles, Laura
;
Gomes, Milton S.
;
Kang, Lauren
;
Combe, Craig M. S.
;
Silva, Hugo Santos
;
Lavarda, Francisco C.
;
Begue, Didier
;
Dagron-Lartigau, Christine
;
Rocco, Maria Luiza M.
;
Luscombe, Christine K.
;
Olivati, Clarissa A.
;
Graeff, Carlos F. O.
;
Hiorns, Roger C.
Número total de Autores: 16
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Polymer International; v. 66, n. 10, p. 1364-1371, OCT 2017. |
| Citações Web of Science: | 1 |
| Resumo | |
For the first time, imino chemistry is explored for the synthesis of main chain fullerene oligomers and low-molecular-weight polymers. Oligo(aziridinofullerene)s and low-molecular-weight poly(aziridinofullerene)s (PAFs) are prepared by 1,3-dipolar cycloadditions of bis(azidoalkyl) comonomers to C-60. The effect of the steric bulk of the comonomer is studied and it is found that PAF solubilities and molecular weights are increased with longer comonomer side-chains. Initial and promising photovoltaic characterizations show commensurate improvements in properties. Interestingly, the PAFs exhibit lowest unoccupied molecular orbitals close to those of phenyl-C-61-butyric acid methyl ester. Routine characterizations are correlated with DFT/B3LYP/6-31G(d) to understand structural and electronic behaviours. It is expected that higher molecular weights may be obtained through comonomer variations and that this novel methodology will open a route to interesting materials for optoelectronics. (C) 2017 Society of Chemical Industry (AU) | |
| Processo FAPESP: | 11/02205-3 - Células solares híbridas a base de nanopartículas de TiO2 |
| Beneficiário: | Bruna Andressa Bregadiolli |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |