Regioselective Dendritic Functionalization of Cellulose

Abstract

Summary: A series of regioselectively dendronized cellulose derivatives has been prepared by the treatment of cellulose in a N,N‐dimethylacetamide/LiCl solvent system with dendrons possessing isocyanate focal substituents. These new materials were characterized using FT‐IR and 13C NMR spectroscopies, and thermogravimetric analysis; the products were highly soluble in a wide range of organic solvents.

Synthesis of nanostructured cadmium and zinc sulfides in aqueous solutions of hyperbranched polyethyleneimine

“…Little work has been published on using dendrimers (the highly ordered hyperbranched polymers), in nanoparticles preparation [42]. However, it has been shown that dendronized cellulose could be used to prepare CdS QDs [43,44]. In the present work, the use of PEI in the synthesis of metal sulfide nanoparticles using cheap and safe inorganic starting materials was explored.…”

Synthesis and characterization of cellulose fibers grafted with hyperbranched poly(3-methyl-3-oxetanemethanol)

“…For example, they exhibit significantly low intrinsic viscosities in solution because of their globular shapes, which is particularly valuable for composite processing. Hassan and coworkers regioselectively dendronized cellulose with diverse siloxy and carbamate dendrons with different peripheral groups by homogenous substitution reactions (Hassan et al 2005;Hassan et al 2004;Hwang et al 2006). The dendronized celluloses possess a wide range of solubilities in organic solvents.…”

Selectively Dendronized Cellulose: Synthesis and Characterization

“…Very recently, dendronized cellulose derivatives were described by Newkome and coworkers for the first time. [5,6] Aminotriester-based…”