The acrylate photocuring system with the high curing rate are widely used in various industries. However, the rapid polymerization kinetics can cause the surge of resin viscosity and the gel point can be reached in advance. This can results in the restriction of molecular chain movement and internal stress release is thus hindered during the photopolymerization. Finally, it usually leads to the poor performance of UV-cured materials with lower double bond conversion and large volume shrinkage and shrinkage stress. In order to understand the relationship between properties and polymerization process, this paper employed the combined technique of the mid-infrared spectrometer and photo-rheometer to monitor the acrylate free radical photopolymerization process. The effects of curing conditions (curing temperature, radiant intensity and sample thickness) and system compositions (diluent functionality, diluent segment length) on the rheological properties and chemical conversion of materials were fully investigated. Finally, a standard protocol is established to evaluate the reactivity, mechanical properties and volume shrinkage of the photocuring system. Simultaneously, the double bond conversion of the reaction system can be achieved through calculation of peak area of IR absorption. A complex nonlinear relationship between the storage modulus, shrinkage stress and double bond conversion is established.

具有高固化速率的丙烯酸酯光固化体系被广泛用于各个行业。但是，快速的聚合动力学会引起树脂粘度的激增，并且可以提前达到胶凝点。这可以导致分子链运动的限制，因此在光聚合过程中阻碍了内部应力的释放。最后，它通常导致紫外线固化材料的性能较差，其双键转化率较低，体积收缩率和收缩应力较大。为了理解性能与聚合过程之间的关系，本文采用中红外光谱仪与光流变仪相结合的技术来监测丙烯酸酯自由基光聚合过程。固化条件的影响（固化温度，辐射强度和样品厚度）和系统组成（稀释剂功能，稀释剂链段长度）对材料的流变性和化学转化率进行了充分研究。最后，建立了一个标准协议来评估光固化系统的反应性，机械性能和体积收缩率。同时，反应体系的双键转化可以通过计算红外吸收峰面积来实现。建立了储能模量，收缩应力和双键转化之间的复杂非线性关系。机械性能和光固化系统的体积收缩率。同时，反应体系的双键转化可以通过计算红外吸收峰面积来实现。建立了储能模量，收缩应力和双键转化之间的复杂非线性关系。机械性能和光固化系统的体积收缩率。同时，反应体系的双键转化可以通过计算红外吸收峰面积来实现。建立了储能模量，收缩应力和双键转化之间的复杂非线性关系。