Song, C. T.; Zhang, X. H.; Chen, D.; Ma, Y. H.; Yang, W. T. Synthetic features and mechanism for the preparation of vinyl chloride-co-butyl acrylate-co-vinyl acetate terpolymer via precipitation polymerization. Chinese J. Polym. Sci. 2023, 41, 1714–1724
Chang-Tong Song, Xian-Hong Zhang, Dong Chen, et al. Synthetic Features and Mechanism for the Preparation of Vinyl Chloride-co-Butyl Acrylate-co-Vinyl Acetate Terpolymer via Precipitation Polymerization[J]. Chinese Journal of Polymer Science, 2023, 41(11): 1714-1724. DOI: 10.1007/s10118-023-2965-8.
Song, C. T.; Zhang, X. H.; Chen, D.; Ma, Y. H.; Yang, W. T. Synthetic features and mechanism for the preparation of vinyl chloride-co-butyl acrylate-co-vinyl acetate terpolymer via precipitation polymerization. Chinese J. Polym. Sci. 2023, 41, 1714–1724DOI: 10.1007/s10118-023-2965-8.
Chang-Tong Song, Xian-Hong Zhang, Dong Chen, et al. Synthetic Features and Mechanism for the Preparation of Vinyl Chloride-co-Butyl Acrylate-co-Vinyl Acetate Terpolymer via Precipitation Polymerization[J]. Chinese Journal of Polymer Science, 2023, 41(11): 1714-1724. DOI: 10.1007/s10118-023-2965-8.DOI:
Synthetic Features and Mechanism for the Preparation of Vinyl Chloride-co-Butyl Acrylate-co-Vinyl Acetate Terpolymer via Precipitation Polymerization
-(vinyl acetate)] random terpolymers are synthesized successfully via precipitation polymerization. The reaction medium and the monomer feed ratios are crucial factors both for the polymer morphology and reaction kinetic. Moreover
precipitation polymerization is suitable to synthesize ternary copolymer with low number-average molecular weight and high content of BA.
Abstract
Without any type of surfactant or dispersing agent
precipitation polymerization has great superiorities in both polymer synthesis and applications. In the present work
the polymerization of vinyl chloride (VC)
n
-butyl acrylate (BA)
and vinyl acetate (VAc) are conducted in the precipitation polymerization system and series of their random terpolymers poly(vinyl chloride-
co
-
n
-butyl acrylate
-co
-vinyl acetate) (PCBV) are synthesized successfully. The effects of various polymerization conditions
including solvent polarity
temperature
initiator concentration
and monomer feed ratios on the polymerization kinetics
number-average molecular weight (
M
n
)
and terpolymer composition are investigated systematically. The solvent and the monomer feed ratio are crucial factors not only for the polymer morphology
but also for the reaction kinetic. In the non-polar solvent such as
n
-hexane
the PCBV displays particle morphology when the composition of BA ratio lower than 10 wt%. Otherwise
the PCBV forms a uniform polymer phase and precipitates out from the mixture. In the polar solvent
e.g.
dimethyl carbonate (DMC) and ethanol
the PCBV polymer maintains a slurry state either in low or in high monomer feed ratio. Impressively
VC based ternary copolymer that obtained in
n
-hexane has much lower
M
n
(
<
20 kDa) and much higher BA units mass fraction (
>
40 wt%) compared with emulsion and suspension polymerization. Additionally
the terpolymer can be easily separated by simple centrifugation.
Yan,Q.;Zhao,T.;Bai,Y.;Zhang,F.;Yang,W.Precipitationpolymerizationinaceticacid:studyofthesolventeffectonthemorphologyofpoly(divinylbenzene). J. Phys. Chem. B 2009 , 113 ,3008−3014..
Cui,P.;Song,C.T.;Zhang,X.H.;Chen,D.;Ma,Y.H.;Yang,W.T.Preparationofultralowmolecularweightpoly(vinylchloride)withsubmicrometerparticles via precipitationpolymerization. Chinese J. Polym. Sci. 2019 , 37 ,646−653..
Liu,Z.;Chen,D.;Zhang,J.;Liao,H.;Chen,Y.;Sun,Y.;Deng,J.;Yang,W.Self-stabilizedprecipitationpolymerizationanditsapplication. Research 2018 , 2018 ,9370490..
Madruga,E.L.;Fernández-Garcia,M.Highconversioncopolymerizationofdi- n -butylitaconatewithmethylmethacrylateinbenzenesolution. Eur. Polym. J. 1995 , 31 ,1103−1107..
Bao,Y.;Brooks,B.Phase-equilibriumbehaviorofvinylchloride/ n -butaneanditsapplicationindeterminationofvinylchlorideheterogeneouspolymerizationkinetics. J. Polym. Sci., Part A: Polym. Chem. 2001 , 39 ,2179−2188..
Georgiadou,S.;Thomas,N.;Gilbert,M.;Brooks,B.Nonaqueouspolymerizationofvinylchloride:anenvironmentallyfriendlyprocess. J. Appl. Polym. Sci. 2009 , 112 ,2472−2481..
Liu,P.;Su,Z.Surface-initiatedatomtransferradicalpolymerization(SI-ATRP)of n -butylacrylatefromstarchgranules. Carbohyd. Polym. 2005 , 62 ,159−163..
Fernández-García,M.;Madruga,E.Glasstransitionsindimethylanddi- n -butylpoly(itaconateester)sandtheircopolymerswithmethylmethacrylate. Polymer 1997 , 38 ,1367−1371..
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