α-クロルアクリル酸エステルに関する研究(第3報) : 重合体の性状

概要

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In this report, the properties of polymer have been clarified and the experiments on properties of polymer have been carried out in order to find its value for practical using. Also, a comparison of PCA and PMA has been made in this study. Superior elongation strength was shown by PCA than PMA and it gave superior heat-resistant property in elongation test. There was no great difference from PMA in impact test but the hardness was much higher than PMA. There was no great difference between these two in abrasion resistance. An average thermal deformation of PCA was 136.4°c and that of PMA was 93.9°c. The behavior of PCA against the elevation of temperature indicated that the hardness remain unchanged until it reached to 2-3°c lower than the deformation temperature but its bending was increased rapidly thereafter. These facts gave an indication that the molding treatment of PCA can be made easier than PMA. The refractive index of PCA was 1.5194. There was no great difference in the transmittance of light between them. The result of weathering test indicated that no difference was shown for practical using. Resistance to chemicals was slightly superior in PCA than PMA.
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