中文摘要：

采用高温热饱和方法制备干胶时，水解和聚合反应继续进行，聚合反应使链状分子向枝状分子转变，Na2O-B2O3-SiO2系统干胶在100℃干燥后，Q2，Q3，Q43种类型的基团同时存在。当在600℃烧成的Na2O-B2O3-SiO2系统干胶时Q。基团占主要了，这时硅胶网络由较低聚合度变成较高聚合度的硅氧网络了。但在600℃烧成的Na2O-B2O3-SiO2系统玻璃对称性差，该峰对称性差的原因可以这样理解，即基团中Si原子有1个或2个被硼原子取代而导致的结果，即形成了Si-O-B键，在600℃得到加强，这一现象已经被红外吸收光谱的结果得到证实。

英文摘要：

The hydrolysis and polymerization reaction process from the sol to gel and to glass during the period of Na2O-B2O3-SiO2 was still carried out. The chain molecule can be changed into branch molecule. The Q2, Q3, Q4 groups can exist at the same time after drying at 100 ℃. The Q4 groups can exist mostly after drying at 600℃. The polymerization degree of silicon-oxygen become high, but the symmetry is not good because SiOB bond was formed, and the results correspond to IR results .