The morphology and phase behavior of blends of a lightly sulfonated styrenic block copolymer ionomer and poly(caprolactone) (PCL) were investigated by small-angle X-ray scattering and differential scanning calorimetry. Miscibility of PCL in the ionomeric microphase was enhanced due to exothermic interactions between the sulfonate groups and the polyester. In the blends, PCL exhibited unique crystallization behavior due to the effects of miscibility and the restriction imposed by the microdomains. The addition of PCL also changed the microstructure of the block copolymer from a less ordered, elongated spherical morphology to a well-defined lamellar arrangement.
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Guiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R ChinaGuiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R China
Zhang, Chunmei
Lan, Qiaofeng
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Southern Med Univ, Sch Biomed Engn, Biomat Res Ctr, Guangzhou 510515, Guangdong, Peoples R ChinaGuiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R China
Lan, Qiaofeng
Zhai, Tianliang
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Guizhou Bldg Mat Qual Supervis Testing Ctr, Guiyang 550000, Guizhou, Peoples R ChinaGuiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R China
Zhai, Tianliang
Nie, Shengqiang
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Guiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R ChinaGuiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R China
Nie, Shengqiang
Luo, Jun
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Guiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R ChinaGuiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R China
Luo, Jun
Yan, Wei
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Guiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R ChinaGuiyang Univ, Coll Chem & Mat Engn, Guiyang 550005, Guizhou, Peoples R China