Miscibility and competition of cocrystallization behavior of poly (hexamethylene dicarboxylate)s aliphatic copolyesters: Effect of chain length of aliphatic diacids
文献类型：期刊论文
| 作者 | Yu, Yang1; Wei, Zhiyong1; Zhou, Cheng1; Zheng, Liuchun2; Leng, Xuefei1; Li, Yang1 |
| 刊名 | EUROPEAN POLYMER JOURNAL
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 92页码:71-85 |
| 关键词 | Aliphatic Copolyesters Cocrystallization Behavior Inclusion-exclusion Model |
| 英文摘要 | Four series of random aliphatic copolyesters derived from 1,6-hexanediol and different diacids were designed and synthesized to investigate the effect of chain length of aliphatic diacids on miscibility and competition of cocrystallization behavior. Isodimorphic behaviors were observed from DSC, WAXD and SAXS analyses for the four series of copolyesters. Crystal type transition point at isodimorphism depended on the chain length of comonomeric diacid units in copolyesters, which presented a crystallization competition effect between the two crystal types of parent homopolyesters. The comonomeric diacids with longer chain length had stronger competitive ability in controlling the cocrystallization even when they were present in a minor proportion. Then, the cocrystallization miscibility was qualitatively analyzed by WAXD and SAXS, and further quantificatively investigated by the defect Gibbs energy calculated from the Wendling-Suter method. For HS unit (hexamethylene succinate) incorporated into the crystal type of HL unit (HA, HSu, HSe or HD unit whose chain length of comonomeric diacids gradually lengthens compared to HS unit), the HL with longer chain length has better miscibility with the inserted HS unit. For HL unit squeezed into the crystal lattice of HS unit, HS unit has worse miscibility with the longer inserted HL unit. Moreover, the chain length inclusion-exclusion model on the basis of the Wendling and Suter theory is proposed to give an insight into the mechanism of how does the chain length of comonomers regulate the cocrystallization behavior. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38942]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Dalian Univ Technol, Sch Chem Engn, Dept Polymer Sci & Mat, State Key Lab Fine Chem, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yang,Wei, Zhiyong,Zhou, Cheng,et al. Miscibility and competition of cocrystallization behavior of poly (hexamethylene dicarboxylate)s aliphatic copolyesters: Effect of chain length of aliphatic diacids[J]. EUROPEAN POLYMER JOURNAL,2017,92:71-85. |
| APA | Yu, Yang,Wei, Zhiyong,Zhou, Cheng,Zheng, Liuchun,Leng, Xuefei,&Li, Yang.(2017).Miscibility and competition of cocrystallization behavior of poly (hexamethylene dicarboxylate)s aliphatic copolyesters: Effect of chain length of aliphatic diacids.EUROPEAN POLYMER JOURNAL,92,71-85. |
| MLA | Yu, Yang,et al."Miscibility and competition of cocrystallization behavior of poly (hexamethylene dicarboxylate)s aliphatic copolyesters: Effect of chain length of aliphatic diacids".EUROPEAN POLYMER JOURNAL 92(2017):71-85. |
入库方式： OAI收割
来源：化学研究所
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