Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s
Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS-EO), 4,4’-methylenediphenyl diisocyanate and Boltorn® hyperbranched polyesters of the second and third pseudo generation, by a two-step pol...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Association of Chemical Engineers of Serbia
2012-01-01
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| Series: | Hemijska Industrija |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0367-598X/2012/0367-598X1200101D.pdf |
| _version_ | 1828316266273701888 |
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| author | Jovanović Slobodan Poręba Rafał Špírková Milena Vodnik Vesna V. Džunuzović Jasna V. Pergal Marija V. |
| author_facet | Jovanović Slobodan Poręba Rafał Špírková Milena Vodnik Vesna V. Džunuzović Jasna V. Pergal Marija V. |
| author_sort | Jovanović Slobodan |
| collection | DOAJ |
| description | Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS-EO), 4,4’-methylenediphenyl diisocyanate and Boltorn® hyperbranched polyesters of the second and third pseudo generation, by a two-step polymerization in solution. The effect of the EO-PDMS-EO content and functionality of the applied crosslinking agent on the morphology and surface properties of the prepared poly(urethane-ester-siloxane)s was investigated by FTIR spectroscopy, small-angle X-ray scattering (SAXS), atomic force microscopy (AFM), scanning electron microscopy (SEM) and water absorption measurement. Different techniques (FTIR peak deconvolution, SAXS and AFM) revealed that decrease of the crosslinking agent functionality and EO-PDMS-EO content promotes microphase separation in the synthesized poly(urethane-ester-siloxane)s. SEM analysis and water absorption experiments showed that due to the hydrophobic character of EO-PDMS-EO and its ability to migrate to the surface of poly(urethane-ester-siloxane)s, samples synthesized with higher EO-PDMS-EO content and crosslinking agent of lower functionality have more hydrophobic surface and better waterproof performances. The obtained results indicate that the synthesis of poly(urethane-ester-siloxane)s based on EO-PDMS-EO and Boltorn® hyperbranched polyesters leads to the creation of networks with interesting morphological and surface properties, which can be easily tailored by changing the content of EO-PDMS-EO segment or functionality of hyperbranched polyester. |
| first_indexed | 2024-04-13T17:11:57Z |
| format | Article |
| id | doaj.art-82170d7f9466402485cf3a2031fc7ea1 |
| institution | Directory Open Access Journal |
| issn | 0367-598X |
| language | English |
| last_indexed | 2024-04-13T17:11:57Z |
| publishDate | 2012-01-01 |
| publisher | Association of Chemical Engineers of Serbia |
| record_format | Article |
| series | Hemijska Industrija |
| spelling | doaj.art-82170d7f9466402485cf3a2031fc7ea12022-12-22T02:38:16ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2012-01-0166681382110.2298/HEMIND121004101DInvestigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)sJovanović SlobodanPoręba RafałŠpírková MilenaVodnik Vesna V.Džunuzović Jasna V.Pergal Marija V.Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS-EO), 4,4’-methylenediphenyl diisocyanate and Boltorn® hyperbranched polyesters of the second and third pseudo generation, by a two-step polymerization in solution. The effect of the EO-PDMS-EO content and functionality of the applied crosslinking agent on the morphology and surface properties of the prepared poly(urethane-ester-siloxane)s was investigated by FTIR spectroscopy, small-angle X-ray scattering (SAXS), atomic force microscopy (AFM), scanning electron microscopy (SEM) and water absorption measurement. Different techniques (FTIR peak deconvolution, SAXS and AFM) revealed that decrease of the crosslinking agent functionality and EO-PDMS-EO content promotes microphase separation in the synthesized poly(urethane-ester-siloxane)s. SEM analysis and water absorption experiments showed that due to the hydrophobic character of EO-PDMS-EO and its ability to migrate to the surface of poly(urethane-ester-siloxane)s, samples synthesized with higher EO-PDMS-EO content and crosslinking agent of lower functionality have more hydrophobic surface and better waterproof performances. The obtained results indicate that the synthesis of poly(urethane-ester-siloxane)s based on EO-PDMS-EO and Boltorn® hyperbranched polyesters leads to the creation of networks with interesting morphological and surface properties, which can be easily tailored by changing the content of EO-PDMS-EO segment or functionality of hyperbranched polyester.http://www.doiserbia.nb.rs/img/doi/0367-598X/2012/0367-598X1200101D.pdfhyperbranched polyesterpoly(dimethylsiloxane)crosslinked polyurethanemorphologysurface properties |
| spellingShingle | Jovanović Slobodan Poręba Rafał Špírková Milena Vodnik Vesna V. Džunuzović Jasna V. Pergal Marija V. Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s Hemijska Industrija hyperbranched polyester poly(dimethylsiloxane) crosslinked polyurethane morphology surface properties |
| title | Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s |
| title_full | Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s |
| title_fullStr | Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s |
| title_full_unstemmed | Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s |
| title_short | Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s |
| title_sort | investigation of the morphology and surface properties of crosslinked poly urethane ester siloxane s |
| topic | hyperbranched polyester poly(dimethylsiloxane) crosslinked polyurethane morphology surface properties |
| url | http://www.doiserbia.nb.rs/img/doi/0367-598X/2012/0367-598X1200101D.pdf |
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