What Morphologies Do We Want? - TEM Images from Dilute Diblock Copolymer Solutions
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AbstractThe formation of various exotic morphologies of block copolymers in dilute solutions has often been claimed on the basis of TEM imaging. Do they really exist in solutions or are they just some kinetically frozen structures arising from TEM sample preparation? It is shown that different morphologies are formed due to a competition between different time scales. More and more people are realizing that it is necessary to use cryo-TEM to ascertain a novel morphology in polymer solutions, but not everyone is able to access a modern cryo-TEM. Our current study serves as an alarm to those who are interested in morphologies in block copolymer solutions that it is necessary to combine different methods, such as LLS, freeze-drying, and TEM, in their studies.
All Author(s) ListZhao H, Chen QJ, Hong LZ, Zhao L, Wang JF, Wu C
Journal nameMacromolecular Chemistry and Physics
Volume Number212
Issue Number7
PublisherWiley: 12 months
Pages663 - 672
LanguagesEnglish-United Kingdom
Keywordsblock copolymers; laser light scattering; polymer morphology; PS-b-PI; TEM
Web of Science Subject CategoriesPolymer Science; POLYMER SCIENCE

Last updated on 2020-01-06 at 01:09