唐炳涛

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:化工学院

学科:应用化学. 精细化工

办公地点:大连理工大学西部校区综合实验楼E424

联系方式:tangbt@dlut.edu.cn

电子邮箱:tangbt@dlut.edu.cn

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A two-step approach for size controlled preparation of monodisperse polysaccharide-based nanospheres

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论文类型:期刊论文

第一作者:Chu, Lin

通讯作者:Zhang, SF (reprint author), Dalian Univ Technol, Key Lab Fine Chem, Dalian 116024, Peoples R China.

合写作者:Niu, Wenbin,Wu, Suli,Ma, Wei,Tang, Bingtao,Zhang, Shufen,Li, Heping,Liu, Zheng

发表时间:2019-05-01

发表刊物:MATERIALS RESEARCH EXPRESS

收录刊物:SCIE

卷号:6

期号:5

ISSN号:2053-1591

关键字:nanospheres; starch; cellulose; polysaccharide; hydrophobic; hydrothermal

摘要:Owing to the simultaneous occurrence of nucleation and nuclei aggregation in nanoprecipitation approach, the preparation of monodisperse nanospheres from polysaccharide remains a great challenge. Herein a two-step approach is presented for size controlled preparation of monodisperse polysaccharide-based nanospheres with PDI of 0.05 from starch acetate (SA). First, the starch acetate nanospheres (SANs) with average size in the range from 100 to 160 nm were produced by a moderate and constant hydrophobic interaction (MCHI) process. Second, based on principle of Ostwald ripening, a facile hydrothermal method was employed to modulate the size of the SANs obtained from the first step, yielding monodisperse nanospheres ranging from 200 to 1400 nm. This two-step method was also successfully applied to the preparation of ethyl cellulose nanospheres, which provided a facile strategy to prepare nanospheres from polysaccharides. Finally, SANs (744 nm) and ECNs (802 nm) were used to fabricate 2D photonic crystals by self-assembly, further verifying high monodispersity of obtained polysaccharide-based nanospheres.