Han Zhu
Beijing University of Chemical Technology
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Publication
Featured researches published by Han Zhu.
Chinese Journal of Polymer Science | 2013
Wei-xi Yang; Ling-ling Wang; Han Zhu; Ri-wei Xu; Yixian Wu
The random copolymers of glutamic acid (LG) and aspartic acid (ASP), poly(LG-co-ASP), with designed compositions could be successfully synthesized via combination of N-carboxyanhydride ring opening copolymerization with debenzylation. Ring opening copolymerizations of β-benzyl-L-glutamate N-carboxyanhydride (BLG-NCA) and -benzyl-Laspartate N-carboxyanhydride (BLA-NCA) were carried out by using different amines including triethylamine (TEA), diethylamine, n-hexylamine (NHA), triphenylamine, diphenylamine or aniline as initiators. All the 6 amines were highly efficient to get well-defined poly(BLG-co-BLA) copolymers with designed compositions although the polymerizations proceeded via different mechanisms (normal amine mechanism or/and activated monomer mechanism), which are based on chemical structure of amines. The molecular weights of poly(BLG-co-BLA) copolymers could be mediated by both TEA concentration and polymerization time. Then, debenzylation of poly(BLG-co-BLA) copolymers was conducted to prepare the corresponding hydrophilic random copolymers of poly(LG-co-ASP) with α-subunit structure in ASP structural units. The contents of LG structural units in poly(LG-co-ASP) copolymers matched with those of BLG-NCA in NCA-monomer feeds in ring opening copolymerizations initiated by NHA or TEA and were closed to the theoretical line. The diblock copolymer of poly(BLG-b-BLA) could also be synthesized via living NCA ring opening copolymerization by sequential addition of BLGNCA and BLA-NCA.
Journal of Applied Polymer Science | 2007
Han Zhu; Yixian Wu; Jiang-wei Zhao; Qinglei Guo; Qigu Huang; Guan‐Ying Wu
Archive | 2007
Yixian Wu; Qinglei Guo; Han Zhu; Jiang-wei Zhao
Archive | 2006
Yixian Wu; Han Zhu; Jing Wang; Qinglei Guo; Guan‐Ying Wu
Chinese Journal of Polymer Science | 2010
Jiang-wei Zhao; Han Zhu; Yixian Wu; Rui Jian; Guan-ying Wu
Polymer International | 2005
Jing Wang; Yixian Wu; Xu Xu; Han Zhu; Guan‐Ying Wu
Chinese Journal of Polymer Science | 2010
Jiang-wei Zhao; Han Zhu; Yixian Wu; Weiwei Zhou; Guan-ying Wu; Ri-wei Xu
Archive | 2012
Yixian Wu; Zhixin Bai; Han Zhu
Acta Polymerica Sinica | 2012
Han Zhu; Zhixin Bai; Jiang-wei Zhao; Ping Ling; Yixian Wu
Archive | 2008
Yixian Wu; Han Zhu; Jiang-wei Zhao