Polyvinyl Butyral Synthesis Process Based on Deep Eutectic Solvent as a Catalyst | Zendy

Po Li | Zendy; Weilan Xue | Zendy; Zuoxiang Zeng | Zendy; Li Sun | Zendy; Yu Bai | Zendy

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Polyvinyl Butyral Synthesis Process Based on Deep Eutectic Solvent as a Catalyst

Author(s) -

Po Li,

Weilan Xue,

Zuoxiang Zeng,

Li Sun,

Yu Bai

Publication year - 2021

Publication title -

asian journal of chemical sciences

Language(s) - English

Resource type - Journals

ISSN - 2456-7795

DOI - 10.9734/ajocs/2021/v10i319095

Subject(s) - polyvinyl butyral , catalysis , acetal , yield (engineering) , polyvinyl alcohol , butyraldehyde , eutectic system , fourier transform infrared spectroscopy , solvent , chemistry , nuclear chemistry , polyvinyl chloride , polymer chemistry , materials science , chemical engineering , organic chemistry , composite material , alloy , engineering

Polyvinyl butyral (PVB) was prepared by the condensation reaction of polyvinyl alcohol (PVA) with n-butyraldehyde using a catalyst which is a kind of deep eutectic solvent (DES) made of dodecyltrimethylammonium chloride and p-toluenesulfonic acid. The raw materials and products were characterized by Fourier transform infrared spectroscopy (FT-IR). The effects of the following reaction conditions on the degree of PVB acetal, yield and agglomeration of the products were investigated: the mass ratio of n-butyraldehyde to PVA (mBA/mPVA) of 0.48-0.96, the mass ratio of catalyst to PVA (mcat/mPVA) of 0.16-0.64, the low temperature reaction temperature (5-20℃), and the low temperature reaction time (1-3h). The results showed that at mBA/mPVA =0.8, mcat/mPVA =0.32, low temperature reaction temperature of 15°C and low temperature reaction time of 2 hours, the obtained PVB was a homogeneous powder with the highest acetal degree of 73.85%.

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