|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM304952893 |
| 003 |
DE-627 |
| 005 |
20231225120110.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2020 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1021/acs.langmuir.9b03462
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1016.xml
|
| 035 |
|
|
|a (DE-627)NLM304952893
|
| 035 |
|
|
|a (NLM)31895574
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Zhong, Qi
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Thermoresponsive Diblock Copolymer Films with a Linear Shrinkage Behavior and Its Potential Application in Temperature Sensors
|
| 264 |
|
1 |
|c 2020
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 04.03.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a The linear shrinkage behavior in thermoresponsive diblock copolymer films and its potential application in temperature sensors are investigated. The copolymer is composed of two thermoresponsive blocks with different transition temperatures (TTs): di(ethylene glycol) methyl ether methacrylate (MEO2MA; TT1 = 25 °C) and poly(ethylene glycol) methyl ether methacrylate (OEGMA300; TT2 = 60 °C) with a molar ratio of 1:1. Aqueous solutions of PMEO2MA-b-POEGMA300 show a three-stage transition upon heating as seen with optical transmittance and small-angle X-ray scattering: dissolution (T < TT1), self-assembled micelles with core-shell structure (TT1 < T < TT2), and aggregation of collapsed micelles (T > TT2). Due to the restrictions in the polymer chain arrangement introduced by the solid Si substrate, spin-coated PMEO2MA-b-POEGMA300 films exhibit an entirely different internal structure and transition behavior. Neutron reflectivity shows the absence of an ordered structure normal to the Si substrate in as-prepared PMEO2MA-b-POEGMA300 films. After exposure to D2O vapor for 3 h and then increasing the temperature above its TT1 and TT2, the ordered structure is still not observed. Only a D2O enrichment layer is formed close to the hydrophilic Si substrate. Such PMEO2MA-b-POEGMA300 films show a linear shrinkage between TT1 and TT2 in a D2O vapor atmosphere. This special behavior can be attributed to the synergistic effect between the restrained collapse of the PMEO2MA blocks by the still swollen POEGMA300 blocks and the impedance of chain arrangement by the Si substrate. Based on this unique behavior, spin-coated PMEO2MA-b-POEGMA300 films are further prepared into a temperature sensor by implementing Ag electrodes. Its resistance decreases linearly with temperature between TT1 and TT2
|
| 650 |
|
4 |
|a Journal Article
|
| 700 |
1 |
|
|a Chen, Chen
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Mi, Lei
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wang, Ji-Ping
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Yang, Jing
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wu, Guang-Peng
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Xu, Zhi-Kang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Cubitt, Robert
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Müller-Buschbaum, Peter
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 3 vom: 28. Jan., Seite 742-753
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
|
| 773 |
1 |
8 |
|g volume:36
|g year:2020
|g number:3
|g day:28
|g month:01
|g pages:742-753
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1021/acs.langmuir.9b03462
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_22
|
| 912 |
|
|
|a GBV_ILN_350
|
| 912 |
|
|
|a GBV_ILN_721
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 36
|j 2020
|e 3
|b 28
|c 01
|h 742-753
|