Preparation of Syndiotactic Poly(vinyl alcohol) Microfibrils with Radiopaque Inorganic Particles

Title
Preparation of Syndiotactic Poly(vinyl alcohol) Microfibrils with Radiopaque Inorganic Particles
Author(s)
오태환차진욱한성수이준석조혜원
Keywords
BULK-POLYMERIZATION; VINYL PIVALATE; SAPONIFICATION; FIBERS; POLYVINYL-ALCOHOL); EMBOLIZATION; ACETATE
Issue Date
201309
Publisher
POLYMER SOC KOREA
Citation
POLYMER-KOREA, v.37, no.5, pp.563 - 570
Abstract
Poly(vinyl pivalate) (PVPi) was bulk polymerized to make poly(vinyl alcohol) (PVA) microfibrils to apply for polymeric embolization coils replacing metalic coils. Then, syndiotactic PVA (s-PVA) microfibrils having number-average degree of polymerization of 1100 and s-diad content of 60.4% were prepared via saponification of the PVPi with no separate spinning process. To make s-PVA microfibrils with radiopacity, zirconium dioxide (ZrO2) and barium sulfate (BaSO4) were added into s-PVA microfibrils during saponification. The computed tomography (CT) value indicating radiopacity reached up to over 1000 when the amount of ZrO2 and BaSO4 were 12 and 6 wt%, respectively.
URI
http://hdl.handle.net/YU.REPOSITORY/29023http://dx.doi.org/10.7317/pk.2013.37.5.563
ISSN
0379-153X
Appears in Collections:
공과대학 > 화학공학부 > Articles
공과대학 > 융합섬유공학과 > Articles
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