An Efficient Organic Additive to Control the Crystallization Rate of Aliphatic Polyketone： A Non-isothermal Crystallization Kinetics Study

• Published in: Chinese journal of polymer science Vol. 35; no. 4; pp. 547 - 557
• Main Authors: Zhang, He-xin, Park, Min-Jeong, Moon, Young-Kwon, Ko, Eun-Bin, Zhang, Xue-quan, Yoon, Keun-Byoung
• Format: Journal Article
• Language: English
• Published: Beijing Chinese Chemical Society and Institute of Chemistry, CAS 01.04.2017; Springer Nature B.V
• Subjects: Additives; Aliphatic compounds; Anhydrides; Blends; Carboxylic acids; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Crystallization; Industrial Chemistry/Chemical Engineering; Kinetics; Melt temperature; Melting; Organic compounds; Polyketones; Polymer Sciences; 控制; 有机化合物; 有机添加剂; 熔融温度; 结晶温度; 结晶速率; 脂肪族聚酮; 非等温结晶动力学; Non-isothermal; Polyketone; Anhydride; Crystallization kinetics
• ISSN: 0256-7679; 1439-6203
• DOI: 10.1007/s10118-017-1901-1

Three types of organic compounds--two carboxylic acids and an anhydride, were used as additives for polyketone （PK）. The effect of the additive structure and their feed ratios on the melting temperature, crystallization temperature, and crystallization rate of PK were studied. We found that the crystallization temperature could be reduced significantly by introducing a small quantity of organic additive, in particular, an anhydride. On addition of 1 phr of anhydride, the crystallization temperature was reduced by 10.7 ℃. Therefore, the non-isothermal crystallization kinetics of aliphatic PKJanhydride blends with various feed ratios was investigated using DSC. The results were analyzed by various theoretical models, such as Avrami, Ozawa and combined Avrami-Ozawa models.