Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride
Hyperbranched poly(ethyleneimine) (PEI, Mn 10 kDa) was simply reacted with tetraazacalix[2]arene[2]triazine (ACAT) dichloride in a feed ratio from 1:1 to 1:5 under diluted conditions to produce self-standing PEI modified films with good mechanical strength and thermal properties. In a dynamic mechan...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-04-01
|
| Series: | Next Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825000310 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832087324598468608 |
|---|---|
| author | Tomohiro Suzuki Ryota Shibata Tadashi Tsukamoto Yuji Shibasaki |
| author_facet | Tomohiro Suzuki Ryota Shibata Tadashi Tsukamoto Yuji Shibasaki |
| author_sort | Tomohiro Suzuki |
| collection | DOAJ |
| description | Hyperbranched poly(ethyleneimine) (PEI, Mn 10 kDa) was simply reacted with tetraazacalix[2]arene[2]triazine (ACAT) dichloride in a feed ratio from 1:1 to 1:5 under diluted conditions to produce self-standing PEI modified films with good mechanical strength and thermal properties. In a dynamic mechanical analysis (DMA), the glass transition temperature of the modified polymer was observed from −13.6°C to 35.1 °C, and this value increased with the amount of ACAT modifier. A small relaxation was observed in DMA at temperatures above 70°C, which was due to the partial cleavage of the hydrogen bonds between ACAT and PEI segments. By virtue of these two relaxation phenomena, the PEI modified films exhibited shape-memory properties. Since the films were insoluble in water, their copper adsorption behavior was studied, finding that the modified polymer powder rapidly adsorbed 1.5 mg/g copper ion within 1 h. |
| format | Article |
| id | doaj-art-248f51454a0d4a5d9bad01d21246b7c7 |
| institution | Kabale University |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-248f51454a0d4a5d9bad01d21246b7c72025-02-06T05:13:08ZengElsevierNext Materials2949-82282025-04-017100513Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichlorideTomohiro Suzuki0Ryota Shibata1Tadashi Tsukamoto2Yuji Shibasaki3Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, JapanDepartment of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, JapanDepartment of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, JapanDepartment of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, Japan; Center for Sustainable Materials and Interfacial Science (CSMIS), Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan; Corresponding author at: Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, Japan.Hyperbranched poly(ethyleneimine) (PEI, Mn 10 kDa) was simply reacted with tetraazacalix[2]arene[2]triazine (ACAT) dichloride in a feed ratio from 1:1 to 1:5 under diluted conditions to produce self-standing PEI modified films with good mechanical strength and thermal properties. In a dynamic mechanical analysis (DMA), the glass transition temperature of the modified polymer was observed from −13.6°C to 35.1 °C, and this value increased with the amount of ACAT modifier. A small relaxation was observed in DMA at temperatures above 70°C, which was due to the partial cleavage of the hydrogen bonds between ACAT and PEI segments. By virtue of these two relaxation phenomena, the PEI modified films exhibited shape-memory properties. Since the films were insoluble in water, their copper adsorption behavior was studied, finding that the modified polymer powder rapidly adsorbed 1.5 mg/g copper ion within 1 h.http://www.sciencedirect.com/science/article/pii/S2949822825000310CalixarenePoly(ethyleneimine)Shape memoryMetal adsorption |
| spellingShingle | Tomohiro Suzuki Ryota Shibata Tadashi Tsukamoto Yuji Shibasaki Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride Next Materials Calixarene Poly(ethyleneimine) Shape memory Metal adsorption |
| title | Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride |
| title_full | Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride |
| title_fullStr | Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride |
| title_full_unstemmed | Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride |
| title_short | Fabrication of self-standing hyperbranched poly(ethyleneimine) film with shape-memory and copper adsorption behavior via simple polymer reaction with tetraazacalix[2]arene[2]triazine dichloride |
| title_sort | fabrication of self standing hyperbranched poly ethyleneimine film with shape memory and copper adsorption behavior via simple polymer reaction with tetraazacalix 2 arene 2 triazine dichloride |
| topic | Calixarene Poly(ethyleneimine) Shape memory Metal adsorption |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825000310 |
| work_keys_str_mv | AT tomohirosuzuki fabricationofselfstandinghyperbranchedpolyethyleneiminefilmwithshapememoryandcopperadsorptionbehaviorviasimplepolymerreactionwithtetraazacalix2arene2triazinedichloride AT ryotashibata fabricationofselfstandinghyperbranchedpolyethyleneiminefilmwithshapememoryandcopperadsorptionbehaviorviasimplepolymerreactionwithtetraazacalix2arene2triazinedichloride AT tadashitsukamoto fabricationofselfstandinghyperbranchedpolyethyleneiminefilmwithshapememoryandcopperadsorptionbehaviorviasimplepolymerreactionwithtetraazacalix2arene2triazinedichloride AT yujishibasaki fabricationofselfstandinghyperbranchedpolyethyleneiminefilmwithshapememoryandcopperadsorptionbehaviorviasimplepolymerreactionwithtetraazacalix2arene2triazinedichloride |