Isothermal Crystallization Kinetics and Crystalline Morphologies of Poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) Copolymers
Isothermal Crystallization Kinetics and Crystalline Morphologies of Poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) Copolymers
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聚己二酸丁二醇酯-1,4-环己烷二甲酸丁二醇酯共聚物的等温结晶动力学和结晶形貌
DOI：
10.1007/s10118-018-2051-9
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发表时间：
2018-02
影响因子：
4.3
通讯作者：
Jin Zhu
中科院分区：
文献类型：
--
作者：
Fei Liu;Dequan Chi;Haining Na;Jin Zhu
采用差示扫描量热法（DSC）和偏光显微镜（偏光显微镜）研究了含非平面环状结构的聚己二酸丁二醇酯-环己二甲酸丁二醇酯共聚物（PBAC）的等温结晶动力学和结晶形态，并与纯聚1，4-环己二甲酸丁二醇酯（PBC）的等温结晶动力学和结晶形态进行了比较。结果表明，在PBAC中引入己二酸丁二酯（BA）单元并没有改变PBAC的本质结晶机制。但PBAC共聚物的结晶速率、结晶能力和平衡熔融温度均降低。在一定的过冷度下，PBC和PBAC共聚物只能从熔体中形成高密度的成核，而不能观察到马耳他十字形或环带球晶。BA含量高的PBAC共聚物经液氮淬冷后变为无定形，而BA含量低的PBC和PBAC共聚物在液氮淬冷后仍能形成大量的成核。
In this study, the isothermal crystallization kinetics and crystalline morphology of poly(butylene adipate-co-butylene 1,4-cyclohexanedicarboxylate) (PBAC), which refers to a copolyester containing a non-planar ring structure, were investigated by differential scanning calorimetry and polarized optical microscopy, and compared with those of neat poly(butylene 1,4-cyclohexanedicarboxylate) (PBC). The results indicate that the introduction of butylene adipate (BA) unit into PBAC did not change the intrinsical crystallization mechanism. But, the crystallization rate and ability, and equilibrium melting temperature of PBAC copolymers were reduced. All PBC and PBAC copolymers could only form high density of nucleation from melt at given supercooling, while no Maltese cross or ring-banded spherulites could be observed. PBAC copolymers with a high amount of BA unit became amorphous after quenching with liquid nitrogen from melt, while PBC and PBAC copolymers with a low amount of BA unit could still form a large amount of nuclei under the same treatment.
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影响因子：
4.6
作者：
Jinjun Yang;Pengju Pan;Tungalag Dong;Y. Inoue
通讯作者：
Jinjun Yang;Pengju Pan;Tungalag Dong;Y. Inoue
影响因子：
6.2
作者：
K. Kuwabara;Z. Gan;Takashi Nakamura;H. Abe;Y. Doi
通讯作者：
K. Kuwabara;Z. Gan;Takashi Nakamura;H. Abe;Y. Doi
影响因子：
6.2
作者：
Gan, ZH;Kuwabara, K;Doi, Y
通讯作者：
Doi, Y
影响因子：
0.9
作者：
Wang;Xiaohui;Shi;Jun;Chen;Ying;Fu;Zhi-feng;Yan
通讯作者：
Wang;Xiaohui;Shi;Jun;Chen;Ying;Fu;Zhi-feng;Yan
影响因子：
4.6
作者：
S. Hwang;X. Jin;E. Yoo;S. Im
通讯作者：
S. Hwang;X. Jin;E. Yoo;S. Im