Confined crystallization kinetics and scale of semicrystalline block copolymer via non-isothermal method

Confined crystallization kinetics and scale of semicrystalline block copolymer via non-isothermal method
复制标题

非等温法半晶嵌段共聚物的限域结晶动力学和规模

DOI:
10.1007/s10973-016-5761-7
复制
发表时间:
2017-03
影响因子:
4.4
通讯作者:
Wang L M
Wang L M
中科院分区:
工程技术3区
文献类型:
--
作者:
Chen SJ;Wang L M

文献摘要

参考文献

相似文献

采用差示扫描量热法(DSC)研究了聚苯乙烯-b-聚环氧乙烷-b-聚苯乙烯三嵌段共聚物(SEOS)的非等温结晶行为。在非等温条件下,对分子量与PEO嵌段几乎相同的均聚物聚环氧乙烷(PEO)进行了比较研究。由最终结晶度X(c)和给定的聚合度N,将不同动力学阶段的相对结晶度X(t)转化为参与结晶过程的单体单元数。基于公认的PEO晶体结构模型,可以用特定阶段的X(t)来计算PEO晶体的尺度。通过对SEOS和PEO结晶行为的比较发现,固化PS嵌段的限制作用限制了PEO链的运动,使其在初始阶段形成有序结构,并降低了控制整个结晶过程的晶核层厚度。
In this paper, differential scanning calorimetry (DSC) was used to study non-isothermal crystallization behaviors of tri-block copolymer poly(styrene)-b-poly(ethylene oxide)-b-poly(styrene) (SEOS). Homopolymer poly(ethylene oxide) (PEO) with almost the same molecular weight as PEO block was also studied comparatively under non-isothermal conditions. From final degree of crystalline X (c) and given degree of polymerization N, relative degree of crystalline X (t) at different kinetics stage was changed to be monomer units numbers involved in crystallization process. Based on well-recognized model of PEO crystalline structure, X (t) at specific stage can be used to calculate the scales of PEO crystalline. Comparing the crystallization behaviors of SEOS with those of PEO, it is indicated that confinement from solidified PS block restricts the mobility of PEO chain to form a pre-ordered structure in initial stage and decreases its lamellae thickness of nucleus that dominates the whole crystallization process.
DOI: 10.1021/ma981169o
发表时间: 1999-02
期刊: Macromolecules
影响因子: 5.5
作者:
Limin Wu;M. Lisowski;S. Talibuddin;J. Runt
通讯作者: Limin Wu;M. Lisowski;S. Talibuddin;J. Runt
DOI: 10.1007/s10973-013-3040-4
发表时间: 2013-03
影响因子: 4.4
作者:
M. Soccio;N. Lotti;A. Munari
通讯作者: M. Soccio;N. Lotti;A. Munari
DOI: 10.1002/(sici)1099-0488(19990815)37:16
发表时间: 1999-08
期刊: Journal of Polymer Science Part B
影响因子: --
作者:
L. Cheng;D. Lin;Chien-Hsieh Shih;A. Dwan;C. Gryte
通讯作者: L. Cheng;D. Lin;Chien-Hsieh Shih;A. Dwan;C. Gryte
DOI: 10.1021/ma9616118
发表时间: 1997-07
期刊: Macromolecules
影响因子: 5.5
作者:
G. Floudas;C. Tsitsilianis
通讯作者: G. Floudas;C. Tsitsilianis
DOI: 10.1007/s10973-010-0947-x
发表时间: 2010-07
影响因子: 4.4
作者:
V. Mathot
通讯作者: V. Mathot