The synthesis and characterization of PNIPAM microgels<br /> with clay as cross-linker<br />
Journal Title: Science Paper Online - Year 2007, Vol 2, Issue 5
Abstract
Adopting inorganic clay (hectorite) as a physical cross-linker, a series of temperature-sensitive microgels based on poly(N-isopropyl-acrylamide)(PNIPAM) with a range of particle size from 150 nm to 360 nm are synthesized by surfactant-free emulsion polymerization method. The structure of the microgels is confirmed by FTIR and XRD. The temperature-sensitivity of the microgels is investigated by DLS. It is concluded that clay platelets could act as effective multifunctional cross-linking agents. With increasing clay dosage, the particle size tends to decrease, but increases at higher clay content.
Authors and Affiliations
Qingsong Zhang, Lan Li, Liusheng Zha
Keywords
Related Articles
- EP ID EP91407
- DOI -
- Views 113
- Downloads 0
基于SuperMap的天祝土壤类型图制作技术与实现
地理信息系统(GIS)技术可实现对大量数据的高效管理，其中SuperMap Editor 2003是一款实用方便的GIS软件。本文主要讲述运用该软件对天祝县土壤类型地理分布、土壤性状、面积、养分含量等信息进行的数据转化和管理，以专题图的形式将这些信...
Preliminary analysis of the effect of controlling mining subsidence with waste stow for long wall workface
Based on the brief introduction of the long wall workface mining principle stowing with waste dump, the long wall face waste stowing mechanism and process of mining subsidence are analyzed in this paper. The conceptions...
Some traditional constructional craftsmanship in dangerous at south-east China and their passing on
This thesis is an introductory summary about the recent research of the NNSF project <The research on the traditional constructional craftsmanship in dangerous at South-east China> and other relative researches. Th...
A new thiosemicarbazide ligand chelate with CuCl2 prompt C-N coupling reaction
A new methodology for Copper-catalyzed coupling reaction has been developed, in which imidazole reacts with aryl halides using the combination of 1-(4-hydroxy-3-me thoxybenzylidene) thiosemi-carbazide (L1) and CuCl2 as c...
Sn修饰的Ni/Al2O3对降解<br /> N,N-二甲基甲酰胺制氢反应的催化性能<br />
利用浸渍法制备了一系列不同含量Sn修饰的Ni/Al2O3催化剂(Ni-Sn/Al2O3)，并考察了催化剂对降解N,N-二甲基甲酰胺(DMF)制氢反应的催化性能。结果表明，利用Sn修饰Ni/Al2O3催化剂提高了其降解DMF制氢活性，当Sn/Ni摩尔比为0.1时，H2的产率从N...