title: Effect of Domain Structure of Segmented Poly(urethane-imide) Membranes with Polycaprolactone Soft Blocks on Dehydration of n-Propanol via Pervaporation
metadata.name: dc.contributor.author
metadata.value: Sokolova, Maria
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Bugrov, Alexander
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Smirnov, Michael
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Smirnov, Alexander
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Lahderanta, Erkki
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Svetlichnyi, Valentin
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Toikka, Alexander
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2018-11-08T22:28:59Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2018-11-08T22:28:59Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2018-11-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Sokolova, M.P.; Bugrov, A.N.; Smirnov, M.A.; Smirnov, A.V.; Lahderanta, E.; Svetlichnyi, V.M.; Toikka, A.M.	Effect of Domain Structure of Segmented Poly(urethane-imide) Membranes with Polycaprolactone Soft Blocks on Dehydration of n-Propanol via Pervaporation. Polymers 2018, 10, 1222.
metadata.lang: en_GB
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/15050
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Segmented poly(urethane-imide)s (PUIs) were synthesized by polyaddition reaction and applied for preparation of membranes. Tolylene-2,4-diisocyanate, pyromellitic dianhydride, and m-phenylenediamine for chain extension were used to form hard aromatic blocks. Polycaprolactone diols with molecular weights equal to 530 and 2000 g mol-1 were chosen as soft segments. The effect of the length of soft segments on the structure, morphology, and transport properties of segmented poly(urethane-imide) membranes were studied using atomic force microscopy, small-angle and wide-angle X-ray scattering, and pervaporation experiments. It was found that a copolymer with a shorter soft segment (530 g mol-1) consists of soft domains in a hard matrix, while the introduction of polycaprolactone blocks with higher molecular weight (2000 g mol-1) leads to the formation of hard domains in a soft matrix. Additionally, the introduction of hard segments prevents crystallization of polycaprolactone. Transport properties of membranes based on segmented PUIs containing soft segments of different length were tested for pervaporation of a model mixture of propanol/water with 20 wt % H2O content.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This research was funded by the Russian Science Foundation (RSF) grant number 16-13-10164.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: MDPI
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: segmented block copolymers
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: microphase separation
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: atomic force microscopy
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: small-angle X-ray diffraction
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: structure–property relationships
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: membranes
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: pervaporation
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Effect of Domain Structure of Segmented Poly(urethane-imide) Membranes with Polycaprolactone Soft Blocks on Dehydration of n-Propanol via Pervaporation
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Effect of Domain Structure of Segmented polymers-10-01222.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/15050/1/Effect%20of%20Domain%20Structure%20of%20Segmented%20polymers-10-01222.pdf
resources.format: Adobe PDF
resources.size: 3,56 MB