Symmetric Poly(ethylene oxide-b-styrene-b-isoprene) Triblock Copolymers: Synthesis, Characterization, and Self-Assembly in Bulk and Thin Film
| العنوان: | Symmetric Poly(ethylene oxide-b-styrene-b-isoprene) Triblock Copolymers: Synthesis, Characterization, and Self-Assembly in Bulk and Thin Film |
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| المؤلفون: | Indranil Mitra, Yali Qiao, Gila E. Stein, Nathaniel A. Lynd, Chuanbing Tang, Bongjoon Lee, Jeffery Hayat, Michael R. Bockstaller, Rachel Ferebee |
| المصدر: | Macromolecules. 47:6373-6381 |
| بيانات النشر: | American Chemical Society (ACS), 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Materials science, Ethylene, Polymers and Plastics, Atom-transfer radical-polymerization, Organic Chemistry, Dispersity, Oxide, Styrene, Inorganic Chemistry, chemistry.chemical_compound, chemistry, Polymer chemistry, Materials Chemistry, Copolymer, Self-assembly, Isoprene |
| الوصف: | The synthesis, characterization, and self-assembly of a series of linear poly(ethylene-b-styrene-b-isoprene) (PEO−PS−PI) triblock copolymers containing nearly equal volume fractions of PEO and PI (fPEO ≈ fPI) and various fractions of the middle PS block (70.8 vol % ≤ fPS ≤ 75.6 vol %) is reported. A range of azide-functionalized poly(ethylene oxide-b-styrene) diblock copolymers were prepared by atom transfer radical polymerization (ATRP) of styrene using the same batch of PEO-macroinitiator, followed by azide-functionalization. Monohydroxyl-terminated poly(cis-1,4-isoprene) was first alkyne-functionalized and then sequentially attached to azide-functionalized PEO−PS via copper(I)-catalyzed azide−alkyne cycloaddition reaction, producing PEO−PS−PI triblock copolymers with low dispersity. Bulk samples of each linear triblock copolymer reveal the formation of a binary microdomain structure in which a PS and PI domains mix to form a uniform matrix for spherical PEO microdomains, and the PEO microdomains are ar... |
| تدمد: | 1520-5835 0024-9297 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::5ac5bb11c43aa42a4ebfaaa28978ee01 https://doi.org/10.1021/ma501057m |
| رقم الأكسشن: | edsair.doi...........5ac5bb11c43aa42a4ebfaaa28978ee01 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205835 00249297 |
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