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关于星形支化高分子的溶液性质近年来已有不少研究。与线形高分子的溶液性质相比,相同分子量时星形支化的在稀溶液中的线团尺寸较小,因此链段的空间密度较大。这一因素在星形支化聚苯乙烯稀溶液的链内激基缔合作用和溶液渗透压的第二维利系数中应得到反映,因此对一个三臂支化和一个十二臂支化星形聚苯乙烯试样进行了激基缔合物荧光光谱和激光小角光散射研究。
In recent years, many studies have been conducted on the solution properties of star-branched polymers. Compared with the solution properties of linear polymers, the diameter of the radical branched in weak solution is smaller at the same molecular weight, so the spatial density of the segments is larger. This factor should be reflected in the second Vulcanization coefficient of exciplexation and solution osmolarity in the star-branched polystyrene dilute solution, so that one-arm branched and one-arm branched Star polystyrene samples were excited by excimer fluorescence spectroscopy and laser light scattering.