title: Hydrolysis behavior of regenerated celluloses with different degree of polymerization under microwave radiation.
abstract: This work studied the hydrolysis behavior of regenerated celluloses (RCs) with different degree of polymerization (DP) by using the catalyst of dilute acid under microwave radiation. Results showed that the DP had a considerable influence on hydrolysis of cellulose. The reactivity of RCs was significantly improved when DP was lower than 51. The highest sugar yield of 59.2% was achieved from RC with lowest DP of 23 at 160 °C for 15 min. But the lowest yield of 32.6% was obtained when RC with highest DP of 132 was used. Recrystallization of cellulose was found to hinder the further hydrolysis particularly with the high DP. The effect of recrystallization can be reduced by the decrease of DP of RCs. This research demonstrates that the DP of RCs plays a crucial role on hydrolysis and it provides a preliminary guide based on DP to find a suitable pretreatment method for cellulose hydrolysis.
authors.affiliation: Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
authors.forename: Jinping
authors.initials: J
authors.lastname: Ni
authors.affiliation: Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
authors.forename: Na
authors.initials: N
authors.lastname: Teng
authors.affiliation: Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
authors.forename: Haizhen
authors.initials: H
authors.lastname: Chen
authors.affiliation: Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
authors.forename: Jinggang
authors.initials: J
authors.lastname: Wang
authors.affiliation: Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China. Electronic address: nahaining@nimte.ac.cn.
authors.forename: Haining
authors.initials: H
authors.lastname: Na
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D006868:Hydrolysis; D008872:Microwaves; D058105:Polymerization; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D002482:Cellulose
keywords: Cellulose; Degree of polymerization; Hydrolysis