环型聚α-甲基苯乙烯的合成及其有关溶液性质的表征

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (8): 747.

环型聚α-甲基苯乙烯的合成及其有关溶液性质的表征

何炳林¹, 黄家贤¹, 普敏莉¹, 周长兴²

1. 南开大学化学系;
2. 中国科学院化学研究所

收稿日期:1984-02-22 出版日期:1985-08-24 发布日期:1985-08-24
基金资助:
中国科学院科学基金

Synthesis of Macrocyclic Poly(α-Methylstyrene) and Characterization of Some Properties of the Solution

He Binglin¹, Huang Jiaxian¹, Pu Minli¹, Zhou Changxing²

1. Department of Chemistry, Nankai University, Tianjin;
2. Institute of Chemistry, Academia Sinica, Beijing

Received:1984-02-22 Online:1985-08-24 Published:1985-08-24

摘要/Abstract

摘要： 通过聚α-甲基苯乙烯活性双阴离子和α,α'二氯对甲苯在极稀的溶液中反应合成了环型聚α-甲基苯乙烯。通过光散射法、渗透压法和粘度法进行了有关溶液性质的表征工作。在甲苯中,最小分子量的两个级分的特性粘数[η]实验和相同分子量的线型聚α-甲基苯乙烯的特性粘数[η]线之比分别为0.648和0.707。

Abstract: The article describes the synthesis of macrocyclic poly(α-methylstyrene) by the reaction of living bifunctional poly(α-methylstyrene) with the p-bis(chloromethyl)-benzene at very low concentration. The samples thus obtained are fractionated and the fractions are characterized by the methods of light scattering, osmotic pressure and viscosity.The ratios ([η]_exp)/[η]_linear) of the intrinsic viscosities in toluene of the two fractions of the lowest molecular weight of cyclic products to that of the linear polymer with the same molecular weight are found to be 0.684 and 0.707 respectively.

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何炳林, 黄家贤, 普敏莉, 周长兴. 环型聚α-甲基苯乙烯的合成及其有关溶液性质的表征. 高等学校化学学报, 1985, 6(8): 747.

He Binglin, Huang Jiaxian, Pu Minli, Zhou Changxing. Synthesis of Macrocyclic Poly(α-Methylstyrene) and Characterization of Some Properties of the Solution. Chem. J. Chinese Universities, 1985, 6(8): 747.