1. State Key Laboratory of Pulp and Paper EngineeringSouth China University of Technology Guangzhou 510641 China
2. Leibniz‐Institut für Polymerforschung Dresden e. V. (IPF) Hohe Straße 6 01069 Dresden Germany
3. Organic Chemistry of PolymersTechnische Universität Dresden 01062 Dresden Germany
4. Guangdong Engineering Research Center for Green Fine Chemicals Guangzhou 510640 China