We also found that the ratio of relaxation time of the backbone CH to - CH2 - pro-tons can be used to characterize the dynamics of copolymer gels. The correlation between NMR relaxation time T1 and the mean pore radius of gels has been discussed .

• 聚合物主链质子T1与水质子的T1弛豫行为相反，随交联度加大主链运动受限加强而使其运动减慢，反映了聚合物主链的大分子运动特征，发现主链（-CH-）与（－CH2－）质子T1之比可表征凝胶内部分子链运动的强弱； 讨论了NMR弛豫与凝胶孔径结构的关联。