EMULSION POLYMERIZATION OF STYRENE CONTAINING DENDRIMER PAMAM

YI Changfeng; SHEN Yanhua; DENG Ziwei; XU Zushun; Ford W.T.

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EMULSION POLYMERIZATION OF STYRENE CONTAINING DENDRIMER PAMAM

Research Article | 更新时间：2021-03-19

- EMULSION POLYMERIZATION OF STYRENE CONTAINING DENDRIMER PAMAM
- Acta Polymerica Sinica Issue 6, Pages: 831-834(2004)
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- Published：20 December 2004，
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YI Changfeng, SHEN Yanhua, DENG Ziwei, XU Zushun, Ford W.T.. EMULSION POLYMERIZATION OF STYRENE CONTAINING DENDRIMER PAMAM. [J]. Acta Polymerica Sinica (6):831-834(2004)
DOI：

YI Changfeng, SHEN Yanhua, DENG Ziwei, XU Zushun, Ford W.T.. EMULSION POLYMERIZATION OF STYRENE CONTAINING DENDRIMER PAMAM. [J]. Acta Polymerica Sinica (6):831-834(2004) DOI：

摘要

将树枝状大分子PAMAM (4.5代 )作为种子

以苯乙烯为代表性单体进行乳液聚合 .研究结果表明

加入树枝状大分子PAMAM时

所制得的聚合物乳液粒子平均粒径在 30～50nm之间

小于100nm

且大小分布均匀 ;所制备的聚合物在 1670cm-1 左右处出现酰胺的特征吸收峰

在 3300cm-1 左右处出现N—H伸缩振动特征峰;说明树枝状大分子PAMAM起到种子的作用

所制备的聚合物含树枝状大分子PAMAM.

Abstract

Dendrimers and dendritic polymers have applications in a diverse range of many fields including medical

electronics

nanotechnolody

biology and catalysis．Dendrimers are known for their well-defined

highly branched architectures that are built in a stepwise manner．Using dendrimer PAMAM (generation 4.5) as seed

the monodisperse and nano-sized polystyrene emulsions containing dendrimer PAMAM have been obtained by seed emulsion polymerization．The size and size distribution of particles were characterized by Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS)．It has been found that when PAMAM is used

the diameters of emulsion particles are much smaller than 100 nm

and the particles are nearly monodisperse

which are not easily obtained from other emulsion polymerization systems．The FT-IR spectrums showed obviously that

when PAMAM is used

there are absorption peak at ca．1670 cm-1 and stretching peak at ca．3300 cm-1 which mean that the dendrimer is included in the obtained polymer．

关键词

树枝状大分子聚合物乳液纳米粒子乳液聚合

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