Synthesis and structure/properties characterizations of four polyurethane model hard segments
Four model polyurethane (PU) hard segments were synthesized by reaction of butanol with four typical diisocyanates. The four diisocyanates were aromatic 4,4′-diphenylmethane diisocyanate (4,4′-MDI) and MDI-50 (50% mixture of 2,4′-MDI and 4,4′-MDI), cycloaliphatic 4,4′-dicyclohexylmethane diisocyanat...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Royal Society
2018-01-01
|
| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180536 |
| _version_ | 1818116340513243136 |
|---|---|
| author | Lei Jiang Zhiyong Ren Wei Zhao Wentao Liu Hao Liu Chengshen Zhu |
| author_facet | Lei Jiang Zhiyong Ren Wei Zhao Wentao Liu Hao Liu Chengshen Zhu |
| author_sort | Lei Jiang |
| collection | DOAJ |
| description | Four model polyurethane (PU) hard segments were synthesized by reaction of butanol with four typical diisocyanates. The four diisocyanates were aromatic 4,4′-diphenylmethane diisocyanate (4,4′-MDI) and MDI-50 (50% mixture of 2,4′-MDI and 4,4′-MDI), cycloaliphatic 4,4′-dicyclohexylmethane diisocyanate (HMDI) and linear aliphatic 1,6-hexamethylene diisocyanate (HDI). FTIR, 1H NMR, 13C NMR, MS, X-ray and DSC methods were employed to determine their structures and to analyse their crystallization behaviours and hydrogen bonding interactions. Each of the four PU compounds prepared in the present work displays unique spectral characteristics. The FTIR bands and NMR resonance peaks assigned in the four samples thus provide a reliable database and starting point for investigating the relationship between hard segment structure and the crystallization and hydrogen bonding behaviour in more complex-segmented PU compositions. |
| first_indexed | 2024-12-11T04:20:58Z |
| format | Article |
| id | doaj.art-07506ffa8a3b4c3f8c60542c3e7f7ab9 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-11T04:20:58Z |
| publishDate | 2018-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-07506ffa8a3b4c3f8c60542c3e7f7ab92022-12-22T01:21:06ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-015710.1098/rsos.180536180536Synthesis and structure/properties characterizations of four polyurethane model hard segmentsLei JiangZhiyong RenWei ZhaoWentao LiuHao LiuChengshen ZhuFour model polyurethane (PU) hard segments were synthesized by reaction of butanol with four typical diisocyanates. The four diisocyanates were aromatic 4,4′-diphenylmethane diisocyanate (4,4′-MDI) and MDI-50 (50% mixture of 2,4′-MDI and 4,4′-MDI), cycloaliphatic 4,4′-dicyclohexylmethane diisocyanate (HMDI) and linear aliphatic 1,6-hexamethylene diisocyanate (HDI). FTIR, 1H NMR, 13C NMR, MS, X-ray and DSC methods were employed to determine their structures and to analyse their crystallization behaviours and hydrogen bonding interactions. Each of the four PU compounds prepared in the present work displays unique spectral characteristics. The FTIR bands and NMR resonance peaks assigned in the four samples thus provide a reliable database and starting point for investigating the relationship between hard segment structure and the crystallization and hydrogen bonding behaviour in more complex-segmented PU compositions.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180536polyurethane hard segmentstructural characterizationcrystallization behaviourhydrogen bonding |
| spellingShingle | Lei Jiang Zhiyong Ren Wei Zhao Wentao Liu Hao Liu Chengshen Zhu Synthesis and structure/properties characterizations of four polyurethane model hard segments Royal Society Open Science polyurethane hard segment structural characterization crystallization behaviour hydrogen bonding |
| title | Synthesis and structure/properties characterizations of four polyurethane model hard segments |
| title_full | Synthesis and structure/properties characterizations of four polyurethane model hard segments |
| title_fullStr | Synthesis and structure/properties characterizations of four polyurethane model hard segments |
| title_full_unstemmed | Synthesis and structure/properties characterizations of four polyurethane model hard segments |
| title_short | Synthesis and structure/properties characterizations of four polyurethane model hard segments |
| title_sort | synthesis and structure properties characterizations of four polyurethane model hard segments |
| topic | polyurethane hard segment structural characterization crystallization behaviour hydrogen bonding |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180536 |
| work_keys_str_mv | AT leijiang synthesisandstructurepropertiescharacterizationsoffourpolyurethanemodelhardsegments AT zhiyongren synthesisandstructurepropertiescharacterizationsoffourpolyurethanemodelhardsegments AT weizhao synthesisandstructurepropertiescharacterizationsoffourpolyurethanemodelhardsegments AT wentaoliu synthesisandstructurepropertiescharacterizationsoffourpolyurethanemodelhardsegments AT haoliu synthesisandstructurepropertiescharacterizationsoffourpolyurethanemodelhardsegments AT chengshenzhu synthesisandstructurepropertiescharacterizationsoffourpolyurethanemodelhardsegments |