Study of optical and electrical properties of thin films of the conducting comb-like graft copolymer of polymethylsiloxane with poly(3-hexyltiophene) and poly(ethylene) glycol side chains for low temperature NO 2 sensing

2016 ◽  
Vol 618 ◽  
pp. 277-285 ◽  
Author(s):  
Erwin Maciak ◽  
Marcin Procek ◽  
Kinga Kepska ◽  
Agnieszka Stolarczyk
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Low Temperature ◽  
Ethylene Glycol ◽  
Graft Copolymer ◽  
Side Chains ◽  
Optical And Electrical Properties ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Construction of semi-fluorinated amphiphilic graft copolymer bearing a poly(2-methyl-1,4-bistrifluorovinyloxybenzene) backbone and poly(ethylene glycol) side chains via the grafting-onto strategy

RSC Advances ◽  
2015 ◽  
Vol 5 (50) ◽  
pp. 39668-39676 ◽  
Author(s):  
Guolin Lu ◽  
Hao Liu ◽  
Haifeng Gao ◽  
Chun Feng ◽  
Yongjun Li ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Graft Copolymer ◽  
Graft Copolymers ◽  
Side Chains ◽  
Poly Ethylene Glycol ◽  
Amphiphilic Graft Copolymer ◽  
Amphiphilic Graft Copolymers ◽  
Poly Ethylene ◽  
Williamson Reaction ◽  
Grafting Onto

Amphiphilic graft copolymers bearing a hydrophobic PMBTFVB backbone and hydrophilic PEG side chains were synthesized by Williamson reaction through the grafting-onto strategy.

Control of the water compatibility and shape recovery of polyurethane using the graft polymerization of poly(ethylene glycol) methyl ether acrylate

2020 ◽  
Vol 52 (5) ◽  
pp. 453-468
Author(s):  
Yong-Chan Chung ◽  
Ha Youn Kim ◽  
Jae Won Choi ◽  
Byoung Chul Chun
Keyword(s):  
Low Temperature ◽  
Ethylene Glycol ◽  
Methyl Ether ◽  
Shape Recovery ◽  
Graft Polymerization ◽  
Vapor Permeability ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Low Temperature Flexibility ◽  
Glycol Methyl Ether

Graft polymerization of poly(ethylene glycol) methyl ether acrylate (PEGA) onto polyurethane (PU) was conducted to improve its water compatibility, tensile mechanical strength, shape memory, and low-temperature flexibility properties, as well as to control its water vapor permeability (WVP). Control PUs containing free poly(PEGA) were also prepared to compare with the poly(PEGA)-grafted PUs. The water compatibility of PU notably improved due to the grafting of poly(PEGA) based on water contact angle results. The soft segment melting temperature and glass transition temperature were not changed with the increase in the PEGA content. The tensile strength of PU sharply increased due to the grafting of poly(PEGA), whereas the free poly(PEGA) in the control PUs did not cause a similar increase. The maximum strain of PU was not affected by the grafting of poly(PEGA). The shape recovery at 0°C significantly increased compared with the unmodified PU. The low-temperature flexibility of PU improved, and the WVP through the PU membrane was reduced by the grafting of poly(PEGA) onto PU.

FABRICATION OF QCM TYPE SMOTHER DETECTION SENSOR BY PLASMA POLYMERIZING SnOx ORGANIC-LIKE FILMS AND SPIN COATING WITH POLY ETHYLENE GLYCOL

2012 ◽  
Vol 24 (02) ◽  
pp. 179-183
Author(s):  
Ko-Shao Chen ◽  
Shu-Chuan Liao ◽  
Hsin-Ming Wu ◽  
Yu-Chia Tsao ◽  
Hong-Ru Lin
Keyword(s):  
Thin Films ◽  
Ethylene Glycol ◽  
Spin Coating ◽  
Room Temperature ◽  
Plasma Deposition ◽  
Post Treatment ◽  
Detection Sensitivity ◽  
Poly Ethylene Glycol ◽  
Frequency Drop ◽  
Poly Ethylene

Quartz crystal microbalances (QCM) are transducers for chemical and biochemical sensing. The oscillation frequency of QCM is affected by the adsorbed mass on the surface. In this work, a new room temperature type gas sensor device fabricated by organically hybridized plasma deposition of tetramethyltin (TMT) and oxygen. Post treatment with poly ethylene glycol (PEG) was developed to detect the ambient environmental smother, and the responses of the fabricated sensor to smother detection were investigated. SnO x C y thin films on the sensor electrodes were obtained by plasma deposition from TMT and O 2 gas mixtures at room temperature. A spin coating post treatment on the SnO x C y thin films turns into hydrophilic property. The response of the QCM sensor to the smother detection shows a frequency drop during the burning of candle and has good detection sensitivity with Δf equal to 2400 Hz. Repeated smother testing with the QCM type smother detection sensor also indicates the stability of the fabricated sensor.

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