| Morphology evolution of polystyrene-core/poly(n-isopropylacrylamide)-shell microgel synthesized by one-pot polymerization | |
| Hu, Wen-tao1; Yang, Hua2,3; Cheng, He2,3; Hu, Hai-qing1 | |
| 刊名 | Chinese journal of polymer science
 |
| 2017-09-01 | |
| 卷号 | 35期号:9页码:1156-1164 |
| 关键词 | One-pot Ps-core/pnipam-shell Tem Dls Sans |
| ISSN号 | 0256-7679 |
| DOI | 10.1007/s10118-017-1969-7 |
| 通讯作者 | Cheng, he(chenghe@ihep.ac.cn) ; Hu, hai-qing(hhq@qust.edu.cn) |
| 英文摘要 | One-pot polymerization with macroinitiator is supposed to be a robust, facile way to synthesize well-defined core-shell nanoparticles with fixed shell thickness. to testify this, we investigated the temperature-depending morphology evolution of polystyrene (ps) core/poly(n-isopropylacrylamide) (pnipam) shell microgel synthesized by one-pot polymerization with pnipam-raft as macroinitiator in dimethylformamide (dmf) by transmission electron microscopy (tem), dynamic/static light scattering (dls/sls) and small angle neutron scattering (sans). it is revealed that the microgel has a core-shell structure, i.e., the core is made of pure ps, but the shell is composed of both pnipam-raft macroinitiator and crosslinked ps. in fact, there are 92.0 wt% d2o, 6.7 wt% pnipam and 1.3 wt% ps in the shell in its aqueous dispersion at 21 degrees c; therefore, its shell thickness is much larger than the extended chain length of the macroinitiator as revealed by both sans and dls observations. competitive growth of styrene, divinylbenzene and pnipam macroinitiator as well as possible chain transfer from amine proton of pnipam side chain may lead to the larger shell thickness, compared with the extended chain length of the macroinitiator. our work can shed light on the real morphology control in one-pot polymerization. |
| WOS关键词 | ANGLE NEUTRON-SCATTERING ; VOLUME-PHASE-TRANSITION ; RAFT POLYMERIZATION ; LIGHT-SCATTERING ; POLY(N-ISOPROPYLACRYLAMIDE) ; CORE ; TEMPERATURE ; WATER ; PARTICLES ; GEL |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000405961000011 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177257 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Cheng, He; Hu, Hai-qing |
| 作者单位 | 1.Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Shandong Prov Key Lab Rubber Plast, Minist Educ,Key Lab Rubber Plast, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, CSNS, IHEP, Dongguan 523803, Peoples R China 3.DINS, Dongguan 523808, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Wen-tao,Yang, Hua,Cheng, He,et al. Morphology evolution of polystyrene-core/poly(n-isopropylacrylamide)-shell microgel synthesized by one-pot polymerization[J]. Chinese journal of polymer science,2017,35(9):1156-1164. |
| APA | Hu, Wen-tao,Yang, Hua,Cheng, He,&Hu, Hai-qing.(2017).Morphology evolution of polystyrene-core/poly(n-isopropylacrylamide)-shell microgel synthesized by one-pot polymerization.Chinese journal of polymer science,35(9),1156-1164. |
| MLA | Hu, Wen-tao,et al."Morphology evolution of polystyrene-core/poly(n-isopropylacrylamide)-shell microgel synthesized by one-pot polymerization".Chinese journal of polymer science 35.9(2017):1156-1164. |
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