Preparation of elastic polyurethane microcapsules using CaCO3 microparticles as templates for hydrophobic substances loading

Liu Xiaofan; She Shupeng; Tong Weijun; Gao Changyou

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Preparation of elastic polyurethane microcapsules using CaCO3 microparticles as templates for hydrophobic substances loading

机译：使用CaCO3微粒作为疏水性物质的模板制备弹性聚氨酯微胶囊

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Elastic polyurethane (PU) microcapsules were successfully fabricated via a simple and well controllable adsorption and crosslinking method on porous CaCO3 templates in organic solvent. The PU capsules possessed some amine groups, enabling well dispersion in water. These PU capsules with hydrophobic interiors could load hydrophobic substances such as drugs and dyes from organic solution spontaneously. And the loaded dyes can be well preserved. Their deformation and recovery behaviours were investigated after being forced to flow through a microchannel. Due to their good elasticity, more than 82% squeezed PU capsules could recover their original spherical shape even at a high deformation ratio of 32%. These elastic PU microcapsules with strong shape recovery ability may find diverse applications as microcontainer or microsensor which could survive through harsh conditions like forced deformation.

机译：通过在有机溶剂中的多孔CaCO3模板上成功制造弹性聚氨酯（PU）微胶囊。在有机溶剂中的多孔CaCO 3模板上成功制造。 PU胶囊具有一些胺基，使水中的良好分散。这些具有疏水性内部的PU胶囊可以自发地将疏水物质如药物和从有机溶液中的染料加载。装载的染料可以保存完好。在被迫流过微通道后，研究了它们的变形和恢复行为。由于它们的弹性良好，即使以32％的高变形率，也可以恢复82％以上的挤压的PU胶囊。这些具有强大形状恢复能力的弹性PU微胶囊可能会发现各种应用，作为微肠或微传感器，可以通过强制变形等苛刻条件生存。

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来源
《RSC Advances》 |2015年第8期|共6页
作者
Liu Xiaofan; She Shupeng; Tong Weijun; Gao Changyou;
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作者单位

Zhejiang Univ Dept Polymer Sci &

Engn MOE Key Lab Macromol Synth &

Functionalizat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Dept Polymer Sci &

Engn MOE Key Lab Macromol Synth &

Functionalizat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Dept Polymer Sci &

Engn MOE Key Lab Macromol Synth &

Functionalizat Hangzhou 310027 Zhejiang Peoples R China;

Zhejiang Univ Dept Polymer Sci &

Engn MOE Key Lab Macromol Synth &

Functionalizat Hangzhou 310027 Zhejiang Peoples R China;

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正文语种 eng
中图分类化学;
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1. Preparation of elastic polyurethane microcapsules using CaCO3 microparticles as templates for hydrophobic substances loading [J] . Liu Xiaofan, She Shupeng, Tong Weijun, RSC Advances . 2015,第8期

机译：使用CaCO3微粒作为疏水性物质的模板制备弹性聚氨酯微胶囊
2. Polyelectrolyte microcapsules templated on poly(styrene sulfonate)-doped CaCO3 particles for loading and sustained release of daunorubicin and doxorubicin [J] . Zhao QH, Zhang SA, Tong WJ, European Polymer Journal . 2006,第12期

机译：以聚苯乙烯磺酸盐掺杂的CaCO3颗粒为模板的聚电解质微胶囊，用于装载和持续释放柔红霉素和阿霉素
3. Destruction of Polyelectrolyte Microcapsules Formed on CaCO3 Microparticles and the Release of a Protein Included by the Adsorption Method [J] . International journal of applied mechanics . 2020,第3期

机译：在CaCO 3微粒上形成的聚电解质微胶囊和吸附法包括的蛋白质的释放
4. CaCO3-Templated Microcapsules to Carry Heparin via Layer-by-Layer Self-Assembly [C] . Xinrong Liu, Baoqing Zhu, Yingya Shao, Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009 . 2009

机译：CaCO3模板化微胶囊通过逐层自组装携带肝素
5. Freezing-Induced Loading of TiO2 into PorousVaterite Microparticles: Preparation of CaCO3/TiO2 Composites as Templates To Assemble UV-Responsive Microcapsulesfor Wastewater Treatment [O] . Polina A. Demina, Denis V. Voronin, Ekaterina V. Lengert, 2020

机译：冷冻诱导的TiO2负载到多孔中球ate石微粒：CaCO3 / TiO2复合材料的制备以作为模板来装配紫外线响应性微胶囊。用于废水处理
6. Freezing-Induced Loading of TiO2 into Porous Vaterite Microparticles: Preparation of CaCO3/TiO2 Composites as Templates To Assemble UV-Responsive Microcapsules for Wastewater Treatment [O] . -1

机译：冷冻诱导的TiO2装入多孔Vaterite微粒：制备CaCO3 / TiO2复合材料，作为模板，用于组装紫外线响应微胶囊进行废水处理

Preparation of elastic polyurethane microcapsules using CaCO3 microparticles as templates for hydrophobic substances loading

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