In situ crosslinking of poly (vinyl alcohol)/graphene oxide-glutamic acid nano-composite hydrogel as microbial carrier: Intercalation structure and its wastewater treatment performance

2018 ◽  
Vol 336 ◽  
pp. 306-314 ◽  
Author(s):  
Yaru Yu ◽  
Ying Shu ◽  
Lin Ye
Keyword(s):  
Wastewater Treatment ◽  
Graphene Oxide ◽  
Glutamic Acid ◽  
Vinyl Alcohol ◽  
Composite Hydrogel ◽  
Poly Vinyl Alcohol ◽  
Nano Composite ◽  
Treatment Performance ◽  
In Situ Crosslinking

Effects of SiO2 and In Situ Crosslinking on the Swelling and Thermal Properties of Poly(vinyl Alcohol)/SiO2 Hybrid Films

2011 ◽  
Vol 266 ◽  
pp. 180-183 ◽  
Author(s):  
Jie Liu ◽  
Ke Yong Tang
Keyword(s):  
Vinyl Alcohol ◽  
Sio2 Film ◽  
Poly Vinyl Alcohol ◽  
Swelling Ratio ◽  
Hybrid Films ◽  
Initial Stage ◽  
In Situ Crosslinking ◽  
Hydrolysis Of ◽  
Thermal Stability Of

Poly(vinyl alcohol) (PVA)/SiO2 hybrid films were prepared through hydrolysis of tetraethoxysilane (TEOS) in the presence of PVA solution, followed by the in-situ crosslinking with formaldehyde (HCHO) in acidic circumstance. The swelling and thermal gravimetric (TG) analysis was employed to evaluate the influence of SiO2 and crosslinking on the properties of the hybrid films. The results indicate that SiO2 affects effectively the swelling property and thermal stability of the hybrid films because of both the filling and crosslinking effects of SiO2. With increasing the crosslinking time, the swelling ratio at equilibrium of the hybrid films decreases. The swelling ratio at equilibrium of the hybrid films is sensitive to the SiO2 content, which is similar to the swelling ratio at equilibrium (65~75%) for PVA and PVA/SiO2 hybrid films with enough crosslinking time (12h). Compared to the film without in-situ crosslinking, the crosslinked PVA/SiO2 film showed a lower swelling ratio at equilibrium and an increased diffusion coefficient at the initial stage of swelling.

In situ reduction of graphene oxide in the poly (vinyl alcohol) matrix via microwave irradiation

2017 ◽  
Vol 40 (1) ◽  
pp. 170-178 ◽  
Author(s):  
Jianwei Zhang ◽  
Yonglyu He ◽  
Pu Zhu ◽  
Shaofeng Lin ◽  
Su Ju ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Microwave Irradiation ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
In Situ Reduction

Fabrication of poly(vinyl alcohol)–graphene oxide–polypyrrole composite hydrogel for elastic supercapacitors

2020 ◽  
Vol 55 (25) ◽  
pp. 11779-11791
Author(s):  
Duanli Wei ◽  
Jiaqing Zhu ◽  
Licheng Luo ◽  
Huabo Huang ◽  
Liang Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Vinyl Alcohol ◽  
Composite Hydrogel ◽  
Poly Vinyl Alcohol ◽  
Polypyrrole Composite

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by in situ polymerization with enhanced mechanical properties and water vapor barrier properties

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49448-49458 ◽  
Author(s):  
Jiaojiao Ma ◽  
Ying Li ◽  
Xiande Yin ◽  
Yu Xu ◽  
Jia Yue ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Vinyl Alcohol ◽  
In Situ Polymerization ◽  
Barrier Properties ◽  
Poly Vinyl Alcohol ◽  
Water Vapor Barrier ◽  
One Step ◽  
Polymerization Method

A novel and one-stepin situpolymerization method for preparing the poly(vinyl alcohol) (PVA)/graphene oxide (GO) nanocomposites.

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