writer：Zhongkai Wang, Yaqiong Zhang, Feng Jiang, Huagao Fang, and Zhigang Wang*
keywords：Cellulose, polyisoprene, graft copolymer
source：期刊
specific source：Polymer Chemistry
Issue time：2015年

In this work, we report an elegant design of novel graft copolymers based on two natural abundant biopolymers with opposite physical properties: rigid and hydrophilic cellulose, and flexible and hydrophobic synthesized polyisoprene (analogue of natural rubber), which combines rigidity and flexibility, hydrophobicity and hydrophilicity all in one macromolecule. These cellulose- graft-polyisoprene (Cell- gPI) copolymers were synthesized via homogenous supplemental activator and reducing agent atom transfer radical polymerization (SARA ATRP). FT-IR, 1H NMR, 13C NMR and TGA measurements demonstrate that Cell- g-PI copolymers are successfully prepared. TEM and DMA results illustrate that phase separation occurs in Cell- g-PI copolymers. Water contact angle measurements verify that their hydrophobicity increases with increasing polyisoprene side chain length. In addition, the core–shell Cellg-PI nanoparticles in water can be prepared via a self-organized precipitation (SORP) method.