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We report here a successful free-radical dispersion polymerization of vinyl pivalate (VPi) in an ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][TFSI]) using poly(vinyl pyrrolidone) (PVP) as a stabilizer. Morphological analysis by FE-SEM revealed that poly(vinyl pivalate) (PVPi) obtained from dispersion polymerizations were in the form of spherical particles. Micron-sized,...
The syndiotacticity-rich (syndiotactic diad content of 57–65%) high molecular weight (number-average degree of polymerization of 4500–20000) poly(vinyl alcohol) (PVA) microfibrillar fiber was directly produced via the saponification reaction of poly(vinyl pivalate) (PVPi) by controlling structural factors such as molecular weight and stereoregularity of PVA chains, and appetence between PVA and solvent...
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