Petunia-shaped superstructures of CaCO3 aggregates modulated by modified chitosan
文献类型：期刊论文
| 作者 | Liang, P; Shen, Q; Zhao, Y; Zhou, Y; Wei, H; Lieberwirth, I; Huang, YP; Wang, DJ; Xu, DF |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2004-11-23 |
| 卷号 | 20期号:24页码:10444-10448 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la0481602 |
| 英文摘要 | This paper presents the crystallization behaviour of calcium carbonate at the air/liquid interface of aqueous systems of carboxymethyl chitosan (CMCS) using the Kitano method. Although the synthesized CMCS (M-w approximate to 100 000) with 1.57 degree of carboxymethyl substitution shows no surface activity, it controls the crystallization of calcium carbonate to form a petunia-shaped superstructure. The shuttlecock-like head of this superstructure strongly supports Colfen's opinion (Rudloff, J.; Colfen, H. Langmuir 2004,20, 991996) for the existence of a gas template of CO2 bubbles temporarily captured by polymer molecules, while formation of the stem of this superstructure is provisionally attributed to the presence of the strong electrostatic interactions between calcium ions and the carboxylate groups. The CaCO3 superstructure and its morphology depend not only on the polymer concentration but also on the combined number of calcium ions per CMCS molecule. These results imply that this simple and versatile method expands the morphological investigation of mineralization processes. |
| 语种 | 英语 |
| WOS记录号 | WOS:000225207400014 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55345]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhao, Y |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China 2.Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem Educ Minist, Jinan 250100, Peoples R China 3.Max Planck Inst Polymer Res, D-55021 Mainz, Germany |
| 推荐引用方式 GB/T 7714 | Liang, P,Shen, Q,Zhao, Y,et al. Petunia-shaped superstructures of CaCO3 aggregates modulated by modified chitosan[J]. LANGMUIR,2004,20(24):10444-10448. |
| APA | Liang, P.,Shen, Q.,Zhao, Y.,Zhou, Y.,Wei, H.,...&Xu, DF.(2004).Petunia-shaped superstructures of CaCO3 aggregates modulated by modified chitosan.LANGMUIR,20(24),10444-10448. |
| MLA | Liang, P,et al."Petunia-shaped superstructures of CaCO3 aggregates modulated by modified chitosan".LANGMUIR 20.24(2004):10444-10448. |
入库方式： OAI收割
来源：化学研究所
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