通过辐射聚合以及引发剂引发聚合方法合成了一系列温度敏感性水凝胶，并比较了两法的利弊。运用弹性模量法研究了凝胶的网络结构及其影响因素，并讨论了其对凝胶样品的温度溶胀曲线的影响。测定了水凝胶在空气中的浊点曲线，认为：凝胶本身的浊点是反映其凝胶－凝胶相平衡的热力学行为。 A series of temperature-sensitive hydrogels were synthesized by radiation polymerization and initiator-initiated polymerization. The advantages and disadvantages of the two methods were compared. The structure of the gel network and its influencing factors were studied by using the elastic modulus method. The effect of the gel on the temperature swelling curve was also discussed. The cloud point curve of hydrogel in air was measured. It is considered that the cloud point of gel itself is the thermodynamic behavior that reflects the equilibrium of gel-gel phase.