Design, synthesis, and photochemical behavior of poly(benzyl ester) dendrimers with azobenzene groups throughout their architecture.
A new class of dendrons and dendrimers containing azobenzene units (bearing up to 29 azobenzene groups for four generations) were designed and synthesized with the convergent method, which uses azobenzene derivatives as monomers and benzyl ester groups as linkages leading to photoresponsive dendrons and dendrimers with azobenzene units throughout their architecture. Photochemical isomerization experiments revealed that all of the dendrons and dendrimers undergo trans-cis isomerization by irradiation and cis-trans isomerization by either irradiation or heating.
Wang
Shuangxi
S
Department of Chemistry, University of Alabama at Birmingham, Alabama 35294, USA. wangsx99@yahoo.com
Wang
Ximeng
X
Li
Lijuan
L
Advincula
Rigoberto C
RC
D001391:Azo Compounds / Q000737:chemistry*; D004952:Esters / Q000737:chemistry*; D010777:Photochemistry; D013057:Spectrum Analysis
D001391:Azo Compounds; D004952:Esters; C009850:azobenzene