Chemoenzymatic Synthesis of H-shaped Amphiphilic Pentablock Copolymer and Its Self-assembly Behavior
文献类型：期刊论文
| 作者 | Chen P ; Li YP ; Li CJ ; Meng XL ; Zhang B ; Zhu M ; Liu YJ ; Wang JY |
| 刊名 | polymer-korea
 |
| 出版日期 | 2013 |
| 卷号 | 37期号:3页码:332-341 |
| 关键词 | RING-OPENING POLYMERIZATION TRANSFER RADICAL POLYMERIZATION LIVING CATIONIC-POLYMERIZATION STAR-BRANCHED POLYMERS TARGETED DRUG-DELIVERY BLOCK-COPOLYMERS INDUSTRIAL BIOCATALYST ANIONIC-POLYMERIZATION SILICA NANOPARTICLES GENE DELIVERY |
| ISSN号 | 0379-153x |
| 通讯作者 | li yp |
| 中文摘要 | h-shaped amphiphilic pentablock copolymers (pst)(2)-b-pcl-b-peo-b-pcl-b-(pst)2 was synthesized via chemoenzymatic method by combining enzyme-catalyzed ring-opening polymerization (erop) of epsilon-caprolactone (epsilon-cl) and atom transfer radical polymerization (atrp) of styrene. by this process, we obtained copolymers with controlled molecular weight and low polydispersity. the structure and composition of the obtained copolymers were characterized by nuclear magnetic resonance (nmr), gel permeation chromatography (gpc) and infrared spectroscopy analysis (ir). the crystallization behavior of the copolymers was analyzed by differential scanning calorimetry (dsc) and x-ray diffraction (xrd). the crystallization behavior of the h-shaped block copolymers-demonstrated a pcl dominate crystallization. the self-assembly behavior of the copolymers was investigated in aqueous media. the hydrodynamic diameters of the copolymer micelles in aqueous solution were measured by dynamic light scattering (dls). the morphology of the copolymer micelles was observed by atomic force microscopy (afm) and transmission electron microscopy (tem). the hydrodynamic diameters of spherical micelles declined gradually with the increase of the hydrophobic chain lengths of the copolymers. the critical micelle concentration (cmc) values were determined from fluorescence emission, and it was found that the cmcs decreased with an increase of pst hydrophobic block lengths. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000320014700011 |
| 公开日期 | 2014-04-15 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49876]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen P,Li YP,Li CJ,et al. Chemoenzymatic Synthesis of H-shaped Amphiphilic Pentablock Copolymer and Its Self-assembly Behavior[J]. polymer-korea,2013,37(3):332-341. |
| APA | Chen P.,Li YP.,Li CJ.,Meng XL.,Zhang B.,...&Wang JY.(2013).Chemoenzymatic Synthesis of H-shaped Amphiphilic Pentablock Copolymer and Its Self-assembly Behavior.polymer-korea,37(3),332-341. |
| MLA | Chen P,et al."Chemoenzymatic Synthesis of H-shaped Amphiphilic Pentablock Copolymer and Its Self-assembly Behavior".polymer-korea 37.3(2013):332-341. |
入库方式： OAI收割
来源：长春应用化学研究所
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