Kahraman, Gizem ; Wang, De-Yi ; Irmer, Jonas von ; Gallei, Markus ; Hey-Hawkins, Evamarie ; Eren, Tarik (2019)
Synthesis and Characterization of Phosphorus- and Carborane-Containing Polyoxanorbornene Block Copolymers.
In: Polymers, 11 (4)
doi: 10.3390/polym11040613
Article, Bibliographie
This is the latest version of this item.
Abstract
Grubbs-catalyzed ring-opening metathesis polymerization (ROMP) of carborane- and phosphonate-containing monomers has been used for the generation of hybrid block copolymers. Molecular weights with Mn of 50,000 g/mol were readily obtained with polydispersity index values, Đ, between 1.03–1.08. Reaction of the phospha ester and carborane substituted oxanorbornene block copolymer with trimethylsilyl bromide led to a new polymer with phosphonic acid functionalities. In application studies, the phospha-carborane functionalized block polymer was tested as heat resistance material. Thermal stability was investigated by thermal gravimetric analysis (TGA) and microscale combustion calorimetry (MCC) analysis. Thermal treatment and ceramic yield under air were directly correlated to the carborane content of the block copolymer. However, phosphorus content in the polymer was more crucial for the char residues when heated under nitrogen atmosphere. The peak heat release rate (PHRR) increased as the number of phosphonate functionalities increased. However, corresponding phosphonic acid derivatives featured a lower heat release rate and total heat release. Moreover, the phosphonic acid functionalities of the block copolymer offer efficient chelating capabilities for iron nanoparticles, which is of interest for applications in biomedicine in the future. The complexation with iron oxide nanoparticles was studied by transmission electron microscopy (TEM) and inductively coupled plasma mass spectrometry (ICP–MS).
| Item Type: | Article |
|---|---|
| Erschienen: | 2019 |
| Creators: | Kahraman, Gizem ; Wang, De-Yi ; Irmer, Jonas von ; Gallei, Markus ; Hey-Hawkins, Evamarie ; Eren, Tarik |
| Type of entry: | Bibliographie |
| Title: | Synthesis and Characterization of Phosphorus- and Carborane-Containing Polyoxanorbornene Block Copolymers |
| Language: | English |
| Date: | 2019 |
| Publisher: | MDPI |
| Journal or Publication Title: | Polymers |
| Volume of the journal: | 11 |
| Issue Number: | 4 |
| DOI: | 10.3390/polym11040613 |
| URL / URN: | https://doi.org/10.3390/polym11040613 |
| Corresponding Links: | |
| Abstract: | Grubbs-catalyzed ring-opening metathesis polymerization (ROMP) of carborane- and phosphonate-containing monomers has been used for the generation of hybrid block copolymers. Molecular weights with Mn of 50,000 g/mol were readily obtained with polydispersity index values, Đ, between 1.03–1.08. Reaction of the phospha ester and carborane substituted oxanorbornene block copolymer with trimethylsilyl bromide led to a new polymer with phosphonic acid functionalities. In application studies, the phospha-carborane functionalized block polymer was tested as heat resistance material. Thermal stability was investigated by thermal gravimetric analysis (TGA) and microscale combustion calorimetry (MCC) analysis. Thermal treatment and ceramic yield under air were directly correlated to the carborane content of the block copolymer. However, phosphorus content in the polymer was more crucial for the char residues when heated under nitrogen atmosphere. The peak heat release rate (PHRR) increased as the number of phosphonate functionalities increased. However, corresponding phosphonic acid derivatives featured a lower heat release rate and total heat release. Moreover, the phosphonic acid functionalities of the block copolymer offer efficient chelating capabilities for iron nanoparticles, which is of interest for applications in biomedicine in the future. The complexation with iron oxide nanoparticles was studied by transmission electron microscopy (TEM) and inductively coupled plasma mass spectrometry (ICP–MS). |
| Classification DDC: | 500 Science and mathematics > 540 Chemistry |
| Divisions: | 07 Department of Chemistry 07 Department of Chemistry > Clemens-Schöpf-Institut 07 Department of Chemistry > Clemens-Schöpf-Institut > Organ Chemistry |
| Date Deposited: | 02 Aug 2024 12:33 |
| Last Modified: | 02 Aug 2024 12:33 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Available Versions of this Item
-
Synthesis and Characterization of Phosphorus- and Carborane-Containing Polyoxanorbornene Block Copolymers. (deposited 05 May 2019 19:55)
- Synthesis and Characterization of Phosphorus- and Carborane-Containing Polyoxanorbornene Block Copolymers. (deposited 02 Aug 2024 12:33) [Currently Displayed]
 |
Send an inquiry |
Options (only for editors)
 |
Show editorial Details |
Drucken
Impressum