Crystallization and molecular dynamics of ethylene-vinyl acetate copolymer/butyl rubber blends

作者: Rui Zhang , Xianru He

DOI: 10.1039/C4RA10568K

关键词: Polymer chemistryMorphology (linguistics)Close relationshipMolecular dynamicsEthylene-vinyl acetateCrystal structureButyl rubberMaterials scienceCopolymerChemical engineeringCrystallization

摘要: In this article, butyl rubber (IIR) was blended with ethylene-vinyl acetate copolymer (EVA) through a molten method. The crystal structure, morphology, crystallization and segmental dynamics were characterized. structure test indicated that IIR had no influence on the form of EVA. Furthermore, morphology showed blends changed from sea-island to co-continuous structure. Moreover, non-isothermal kinetics given by Mo’s model rate became fast as content EVA increased. addition, characterization illustrated suppressed molecular motions different degree. Longer units more influenced than shorter units. It also found both close relationship morphology.

参考文章(37)
Xuebang Wu, Changsong Liu, Zhengang Zhu, K. L. Ngai, Li-Min Wang, Nature of the Sub-Rouse Modes in the Glass−Rubber Transition Zone of Amorphous Polymers Macromolecules. ,vol. 44, pp. 3605- 3610 ,(2011) , 10.1021/MA102897E
Xian-ru He, Rui Zhang, Qian Chen, Yao-qiang Rong, Zong-qing Yang, Different surface functionalized nano-Fe3O4 particles for EVA composite adhesives International Journal of Adhesion and Adhesives. ,vol. 50, pp. 128- 135 ,(2014) , 10.1016/J.IJADHADH.2014.01.023
X. R. He, H. Yu, R. Zhang, C. H. Yang, Enhance Slower Relaxation Process of Poly(ethyl acrylate) through Internal Plasticization International Polymer Processing. ,vol. 29, pp. 419- 424 ,(2014) , 10.3139/217.2882
Jinrong Wu, Guangsu Huang, Xiaoan Wang, Xiaojun He, Jing Zheng, Detecting different modes of molecular motion in polyisobutylene and chlorinated butyl rubber by using dielectric probes Soft Matter. ,vol. 7, pp. 9224- 9230 ,(2011) , 10.1039/C1SM05748K
K. L. Ngai, S. Capaccioli, Unified explanation of the anomalous dynamic properties of highly asymmetric polymer blends The Journal of Chemical Physics. ,vol. 138, pp. 054903- 054903 ,(2013) , 10.1063/1.4789585
Raymond F. Boyer, Dynamics and thermodynamics of the liquid state (T < Tg) of amorphous polymers Journal of Macromolecular Science, Part B. ,vol. 18, pp. 461- 553 ,(1980) , 10.1080/00222348008243729
Jinrong Wu, Guangsu Huang, Qiying Pan, Jing Zheng, Yuchan Zhu, Bo Wang, An investigation on the molecular mobility through the glass transition of chlorinated butyl rubber Polymer. ,vol. 48, pp. 7653- 7659 ,(2007) , 10.1016/J.POLYMER.2007.11.006
Yuchan Zhu, Wei Zhou, Junjun Wang, Bo Wang, Jinrong Wu, Guangsu Huang, Study on Damping Mechanism Based on the Free Volume for CIIR by PALS Journal of Physical Chemistry B. ,vol. 111, pp. 11388- 11392 ,(2007) , 10.1021/JP071670V