In an article, author is Nie, Xiaobo, once mentioned the application of 1945-84-2, Product Details of 1945-84-2, Name is 2-Ethynylpyridine, molecular formula is C7H5N, molecular weight is 103.1213, MDL number is MFCD00041598, category is pyridine-derivatives. Now introduce a scientific discovery about this category.
Controlled morphological transition of ABC triblock copolymer aided by oleic acid via hydrogen bonding
A facile method is introduced to tune the aggregate morphologies of ABC triblock copolymer in selective media by combining the self-assembly and hydrogen bonding. Poly(styrene)-block-poly(1,4-butadiene)-block-poly(2-vinyl pyridine), abbreviated for PS-b-PBd-b-P2VP and used as an ABC triblock copolymer, self-assembles in toluene and methanol mixture to form discoid micelles with PBd as the disk containing part of PS domains in the core, other PS as bumps and P2VP as corona, respectively. When oleic acid (OA) is added in the assembly system, supramolecular polymer PS-b-PBd-b-P2VP(OA) is prepared by the hydrogen bonding between OA and P2VP of triblock copolymer. As a result, biscuit-like and mushroom-like micelles are formed with assistance of hydrogen bonding. Interestingly, the biscuit-like and mushroom-like micelles can transform reciprocally by fission and fusion mechanism through varying the volume ratio of toluene and methanol. Thus, it provides a simple and convenient approach to control the aggregate morphologies of block copolymers by tuning the hydrogen bonding and selective solvent content. The multicompartment micelles from ABC triblock copolymer may present potential applications in drug delivery, targeting, catalysis and others.
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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem