SYNTHESIS AND PROPERTIES OF N-VINYLCAPROLACTAM COPOLYMER MICROGELS CONTAINING β-CYCLODEXTRIN UNITS

SU Xia; LIU Yuyang

doi:10.3724/SP.J.1105.2009.00390

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SYNTHESIS AND PROPERTIES OF N-VINYLCAPROLACTAM COPOLYMER MICROGELS CONTAINING β-CYCLODEXTRIN UNITS

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS AND PROPERTIES OF N-VINYLCAPROLACTAM COPOLYMER MICROGELS CONTAINING β-CYCLODEXTRIN UNITS
- Acta Polymerica Sinica Issue 4, Pages: 390-393(2009)
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- DOI：10.3724/SP.J.1105.2009.00390
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- Published：20 April 2009，
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SU Xia, LIU Yuyang. SYNTHESIS AND PROPERTIES OF N-VINYLCAPROLACTAM COPOLYMER MICROGELS CONTAINING β-CYCLODEXTRIN UNITS. [J]. Acta Polymerica Sinica (4):390-393(2009)
DOI：

SU Xia, LIU Yuyang. SYNTHESIS AND PROPERTIES OF N-VINYLCAPROLACTAM COPOLYMER MICROGELS CONTAINING β-CYCLODEXTRIN UNITS. [J]. Acta Polymerica Sinica (4):390-393(2009) DOI： 10.3724/SP.J.1105.2009.00390.

摘要

采用无皂沉淀聚合法，在水溶液中通过 N-乙烯基己内酰胺(VCL)与一种单取代乙烯基 β-环糊精单体(GMA-EDA-β-CD)的共聚反应，合成出了含有 β-CD结构单元的温敏性VCL/GMA-EDA-β-CD共聚物微凝胶.用红外光谱仪(FTIR)、1H核磁共振仪(1H-NMR)、透射电镜(TEM)及激光粒度仪(DLS)对其结构、形态和性能进行了表征.研究结果表明， β-CD结构单元的加入使共聚物微凝胶的粒径减小，粒径分布变窄，但其温敏性降低.

Abstract

VCL/GMA-EDA-β-CD copolymer microgels were synthesized by surfactantfree precipitation copolymerization of N-vinylcaprolactam (VCL) with a monovinyl β-CD monomer (GMA-EDA-β-CD) in aqueous solutions.The VCL/GMA-EDA-β-CD copolymer microgels were characterized via transmission electron microscopy (TEM)

Fourier transfer infrared spectroscopy (FTIR)

1H nuclear magnetic resonance (1H-NMR) and dynamic laser light scattering (DLS).The results indicate that addition of GMA-EDA-β-CD could reduce the particle size and size distribution of the copolymer microgels.The VCL/GMA-EDA-β-CD copolymer microgels exhibit thermally responsive changes in particle size in aqueous solutions

but incorporation of the β-CD monomer into a PVCL microgel could weaken its thermal sensitivity.

关键词

β-环糊精N-乙烯基己内酰胺温度敏感性微凝胶

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