【摘要】 以ST/DVB共聚物为原料,研究了反应温度与反应时间对表面磺化树脂的容量和离子色谱分离性能的影响。实验表明,99℃时磺化速度比60℃快得多。99℃磺化1分钟和60℃磺化21分钟得到的树脂的容量几乎相同,约0.03meq./g。但二者的色谱分离性能有显著差别。在相近的色谱条件下,其Na⁺、K⁺分离度R_Na⁺-k⁺,理论板数N_Na⁺、N_k⁺分别为3.06和1.16,848和174,2218和383（块/米）。从而说明以前提出的磺化深度的概念对指导低容量树脂的制备是没有意义的。更多还原

【Abstract】 The affects of the reaction temparature and time on the capacities of surface-sulphonation resins have been studied with styrene-divinylbenzen （ST/DVB） copolymer as the raw material.Experiments demonstrate at 99℃ the sulphonation rate is bigger than that at 60℃. The resin exchange capacities of both the sulphonation at 90℃ 1min and at 60℃ 21min are almost the same （about 0.003meq./g）.But there is a difference in their ion chromatographic separation character.In similar chromatographic conditions their resolutions R_Na⁺-k⁺ and theoretical plate member N_Na⁺ and N_K⁺ are 3.06 and 1.16, 843 and 174, 2218 and 380 （ps/M） respectively.It is quite enough to prove that the concept of sulphonation depth suggested long before is not suitable for directing the preparation of low capacity resins.更多还原