| 粘度法测定部分水解聚丙烯酰胺的分子量 |
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| 引用本文： | 杨菊萍.粘度法测定部分水解聚丙烯酰胺的分子量[J].高分子学报,2001,21(6):783-786. |
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| 作者姓名： | 杨菊萍 |
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| 作者单位： | 浙江工程学院, |
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| 摘 要： | 在 2 5℃、浓度为 1mol L的NaCl水溶液中 ,测定了聚合度 (DP)为 1 48× 10 3～ 3 79× 10 4的聚丙烯酰胺 (PAM)及其水解度 (h)在 0 %～ 70 %之间的部份水解聚丙烯酰胺 (HPAM)的特性粘度 (η]) .根据聚电解质理论和Kowblansky的研究结果 ,建立了特性粘度 η]与聚合度DP、水解度h之间的定量关系式 :η]=0 1113DP0 83 2 9+0 9973DP0 753 1 (1- 0 81h1 2 )h .用该式处理方献数据 ,其平均误差为 13 74%
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| 关 键 词： | 水解聚丙烯酰胺 特性粘度 分子量 水解度 聚合度 |
| 修稿时间： | 2001年3月14日 |
DETERMINATION OF MOLECULAR WEIGHT OF PARTIALLY HYDROLYZED POLYARYLAMIDE BY VISCOSIMETRY |
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| YANG Juping.DETERMINATION OF MOLECULAR WEIGHT OF PARTIALLY HYDROLYZED POLYARYLAMIDE BY VISCOSIMETRY[J].Acta Polymerica Sinica,2001,21(6):783-786. |
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| Authors: | YANG Juping |
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| Abstract: | The intrinsic viscosity( η ]) of partially hydrolyzed polyacrylamide(HPAM) was measured in 1?mol/L NaCl aqueous solution.The range of hydrolysis degree( h ) of HPAM was 0%～70% and polymerization degree( DP ) of HPAM was 1 48×10 3～3 79×10 4.By the theories of polyelectrolyte and the Kowblansky's studying conclusion,the function of η ] with h,DP was established as: η]=0 1113 DP 0 8329 +0 9973 DP 0 7531 (1-0 81h 1/2 )h M=71DP(1+2371h) The M in the equation is molecular weight of HPAM.The results from the equation are in good agreement with the experiments and the reference data.Its average error is ±13 74%.Therefore,the molecular weight of HPAM with various degree of hydrolysis was established by these two equation. |
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| Keywords: | Hydrolyzed polyacrylamide Intrinsic viscosity Hydrolysis degree Molecular weight Polymerization degree |
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