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Citation: ZHANG Xinmin, GUO Yongjun, LIU Jianxin, FENG Rusen, HU Jun, LI Huabing, ZHAO Dan, ZHANG Jiane, LV Xin. Effects of Hydrophobic Groups Content and Micro-block Length on the Elasticity of Associative Polymer Solution[J]. Chinese Journal of Applied Chemistry, ;2013, 30(8): 903-908. doi: 10.3724/SP.J.1095.2013.20439 shu

Effects of Hydrophobic Groups Content and Micro-block Length on the Elasticity of Associative Polymer Solution

ZHANG Xinmin ^a,b, ,
GUO Yongjun ^a,b ,
LIU Jianxin ^c ,
FENG Rusen ^a ,
HU Jun ^b ,
LI Huabing ^b ,
ZHAO Dan ^d ,
ZHANG Jiane ^e,f ,
LV Xin ^e,f

a. State Key Laboratory of Geology and Production Engineering of Oil-gas Reservoir in Southwest Petroleum University, Chengdu 610500, China;
b. Sichuan Guangya Polymer Chemical Limited Company, Nanchong 637005, China;
c. Petroleum Engineering Institute, Yangtze University, Jingzhou 434023, China;
d. Southwest Qil and Gas Field of Chongqing Natural Gas Purification Plant, Chongqing 401200, China;
f. State Key Laboratory of Offshore Oil Exploitation, Beijing 100027, China;
6.
CNOOC Research Institute, Beijing 100027, China

Received Date: 28 September 2012
Revised Date: 9 November 2012

The effects of hydrophobic group content and micro-block length on viscoelastic properties of P(AM-NaAA-C₁₆DMAAC) (AA:acrylamide, NaAA:sodium acrylate,C₁₆DMAAC:hexadecyl trimethyl allylammonium chloride) solution were studied. The results indicated that the viscoelastic properties could be changed effectively for associative polymers with similar molecular structure and common zero shear viscosity by varying the molecular structures. When increasing the hydrophobic group content,the first normal stress difference (N₁) increased and its shearing rate,a speed for N₁ to reach the minimum value decreased. Furthermore,when increasing the micro-block length,the viscosities and the viscoelatic rheological properties decreased after initial increasing,so there is an optimum value for the micro-block length.
- associative polymer,
- elasticity,
- normal stress difference,
- viscosity
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