Terpolymerization of acrylamide, acrylic acid, and acrylonitrile: Synthesis and properties

Mathakiya, Ismail; Vangani, Veena; Rakshit, Animesh Kumar

doi:10.1002/(sici)1097-4628(19980711)69:2<217::aid-app2>3.0.co;2-q

Cited by 43 publications

(22 citation statements)

References 7 publications

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“…We have verified that the few signals/peaks not labelled in these figures result from either the solvents or impurities, or both (Mathakiya et al 1998).…”

Section: Characterisation Of Polymers Pam Hpam and Pamtacsupporting

confidence: 93%

Polyampholyte polymer as a stabiliser for subgrade soil

Rodriguez

Chandramohan

Iyengar

et al. 2016

International Journal of Pavement Engineering

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a texas a&m university at Qatar, education City, Doha, Qatar; b Zachry Department of Civil engineering, texas a&m university, College Station, tX, uSa; c research School of Physics and engineering, the australian national university, Canberra, australia ABSTRACT This study evaluates the potential of selected ionic polymers to act as pavement subgrade binders. Investigations were based on their relative performance with a Qatari soil which was selected as typical of a pavement subgrade to be found in the Middle East and North African region. The polymeric binders chosen were three synthetic ionic variations of polyacrylamide: cationic poly(acrylamidopropyl trimethyl ammonium chloride) (designated PAMTAC), anionic hydrolysed poly(acrylamide) (HPAM) and the ampholitic terpolymer poly(acrylamide-co-sodiumacrylate-co-(3-acrylamidopropyl) trimethylammonium chloride) (TPAM). The polymers were characterised by Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic spectroscopy ( 1 H-NMR and 13 C-NMR). The comparative performance of the polymertreated soil was judged on the basis of results obtained from selected standard mechanical test data: specifically, the unconfined compressed strength, the stiffness modulus and the toughness. It is concluded that a 50% w/w aqueous solution of the ampholitic terpolymer applied at a dosage of 2.0% by dry weight of the soil gives the best subgrade stabilisation. Of some significance, it is further noted that this ampholitic polymer was superior as a binding agent to the traditional standard, Portland cement, judged under equivalent but nonstandard conditions. Modifying the polymer to act as a binder for subgrade soils in general is also discussed.

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“…We have verified that the few signals/peaks not labelled in these figures result from either the solvents or impurities, or both (Mathakiya et al 1998).…”

Section: Characterisation Of Polymers Pam Hpam and Pamtacsupporting

confidence: 93%

Polyampholyte polymer as a stabiliser for subgrade soil

Rodriguez

Chandramohan

Iyengar

et al. 2016

International Journal of Pavement Engineering

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“…As the temperature increases, the solvation decreases, and hence, V E decreases. 20 The shape factor () was obtained from the equation…”

Section: C-nmr For Various Poly(s-acrylate) Copolymerssupporting

confidence: 56%

“…The reactivity ratios r 1 (styrene) and r 2 (CA or BA) were determined by the FinemanRoss method. 20 The following equation was used.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of styrene-acrylic ester copolymers

Mathakiya

Rao

Rakshit

2000

J. Appl. Polym. Sci.

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“…Rinaldi and coworkers studied the stereosequence of different triads in different copolymers and terpolymers by various 2D NMR techniques [73]. Composition analysis of butyl acrylate/methylmethacrylate/α-methyl styrene terpolymers was carried out by McManus et al [74] Thermogravimetric analysis (TGA) of acrylamide/acrylic acid/acrylonitrile terpolymers was performed by Rakshit and coworkers [75]. Various coworkers have reported the reactivity ratios of different terpolymers [76,77].…”

Section: Nmr Of Terpolymersmentioning

confidence: 99%

Two-dimensional NMR studies of acrylate copolymers

Brar

Goyal

Hooda

2009

Pure and Applied Chemistry

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High-resolution NMR spectroscopy is the most versatile, reliable, and generally acceptable technique for the determination of the microstructure of polymers. 2D NMR techniques, along with 1D NMR, have more potential to study absolute configurational assignments and sequence distribution of copolymers. Physical and chemical properties of polymers are influenced fundamentally by their microstructure. We discuss the detailed microstructure analysis of a large number of homopolymers, copolymers, and terpolymers. 2D NMR study of poly(methyl methacrylate) (PMMA), poly(methyl acrylate) (PMA), and poly(methacrylonitrile) (PMAN) is discussed in this article. In addition to homopolymers, 2D heteronuclear single-quantum coherence (HSQC), total correlation spectroscopy (TOCSY), and heteronuclear multiple-bond correlation (HMBC) study of different copolymers such as poly(methyl methacrylate-co-methyl acrylate), poly(styrene-co-methyl methacrylate), and poly(methyl methacrylate-co-methacrylonitrile) have also been reported here. This in turn helps in microstructural analysis of terpolymers such as poly(methacrylonitrile-co-styrene-co-methyl methacrylate), poly(acrylonitrile-co-methyl methacrylate-comethyl acrylate), and poly(ethylene-co-vinyl acetate-co-carbon monoxide).

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Terpolymerization of acrylamide, acrylic acid, and acrylonitrile: Synthesis and properties

Cited by 43 publications

References 7 publications

Polyampholyte polymer as a stabiliser for subgrade soil

Polyampholyte polymer as a stabiliser for subgrade soil

Synthesis and characterization of styrene-acrylic ester copolymers

Two-dimensional NMR studies of acrylate copolymers

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