期刊
ACS APPLIED POLYMER MATERIALS
卷 4, 期 5, 页码 3743-3751出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsapm.2c00229
关键词
polymer science; electrospinning; scaffolds; porous fibers; surface grafting; polymer surfaces; graft polymerization
资金
- Lebanese National Council for Scientific Research (CNRS-L)
- EU
- French Embassy in Lebanon
- International Atomic Energy Agency (IAEA)
This study increases the specific surface of fiber materials by grafting active polymers and successfully applies them to the capture of lanthanide elements.
In the previous work, the poly(4-vinyl dimethyl dipicolinate) (PVDPM) polymer grafted on poly(vinyl chloride) (PVC) and poly(ethylene terephthalate) (PET) film or industrial fibers proved its efficiency for trapping uranium and many lanthanides in a liquid environment. In this work, we propose to graft our active polymer on fibers obtained by electrospinning to increase the specific surface of our final material. To address this challenge, surface grafting of electrospun chlorinated poly(vinyl chloride) (PVC-co-CPVC) fibers using supplemental activation reducing agent atom transfer radical polymerization (SARA-ATRP) of poly(4-vinyldipicolinic acid) (PVDPA, acid form of PVDPM) were successfully prepared. The (PVC-co-CPVC)-g-PVDPA fibers show a fast increase in the degree of grafting that goes from 54% after 4 h to 369% after 72 h. Further insights demonstrate successful complexation between the new functional electrospun (PVC-co-CPVC)-g-PVDPA fibers and europium, which proves that it could be a potential candidate for scavenging lanthanides or any agent able to interact with ligands (PVDPA), which opens up innovative application perspectives in the field of polymeric materials.
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