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Citation: Lin Mei-Qin, Sun Ai-Jun, Dong Zhao-Xia, Tang Ya-Lin, Li Ming-Yuan, Wu Zhao-Liang. Study on Properties of the Linked Polymer Solution with Low Polymer Concentration[J]. Acta Physico-Chimica Sinica, ;2004, 20(03): 285-289. doi: 10.3866/PKU.WHXB20040314 shu

Study on Properties of the Linked Polymer Solution with Low Polymer Concentration

1.
Enhanced Oil Recovery Research Center, University of Petroleum, Beijing　102249; Institute of Chemistry, Chinese Academy of Sciences, Beijing　100080

Received Date: 15 September 2003
Available Online: 15 March 2004

The properties of solution in the reaction process of low concentration and high molecular weight partially hydrolyzed polyacrylamide（HPAM） and aluminum citrate（AlCit） system are investigated by using viscometer, SEM, nuclear pore membrane, dynamic light scattering and 27Al NMR. The experimental results show that the viscosity of HPAM/AlCit crosslinking system is decreased with reaction time in lower shear rate and the system is shear thickening in higher shear rate. After crosslinking the spin-lattice relaxation time（T1）of Al decreases with the reaction time. The linked polymer solution is formed by intra-molecular crosslink of HPAM and AlCit forming linked polymer coil（LPC） in lower concentration of the system. The LPC is a spherical coil with a mean hydrodynamic radius of 238 nm. The ability of the LPS to block the neclear pore film is related to the reaction time of HPAM/AlCit system.
- Partially hydrolyzed polyacrylamide;Aluminum citrate;Linked polymer solution;Linked polymer coil
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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Properties of the Linked Polymer Solution with Low Polymer Concentration

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com