Synthesis and Characterization of Water-Soluble Starch-Acrylamide Graft Copolymers

Pledger, H.; Young, T. S.; Wu, Guanying; Butler, George B.; Hogen‐Esch, Thieo E.

doi:10.1080/00222338608063408

Cited by 10 publications

(4 citation statements)

References 12 publications

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“…There have been several studies on grafting of various monomers on starch -styrene [41,42], methyl acrylates [42], vinyl acetates [43], ethylene oxide [44,45], ethylene-acrylic acid [46], and acrylamide [47]. However, these blends were limited by the fact that the mechanical properties of these blends were significantly lower than those of the 100% synthetic polymer.…”

Section: Other Grafting Reactionsmentioning

confidence: 99%

An Overview of Starch-Based Plastic Blends from Reactive Extrusion

Kalambur

Rizvi

2006

Journal of Plastic Film & Sheeting

139

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International audienceThe North American market for biodegradable plastics in 2005 was estimated to be around 60 million pounds (27 kt). Starch-based polymer blends were expected to account for 30 million pounds (14 kt) with significantly lower growth rates than other biodegradable polymers such as polyesters. The main hurdle in the growth of starch-based products is the thermodynamic immiscibility and non-wetting of starch with other polymers which leads to serious deterioration of mechanical properties at >25–30 wt% starch. Higher amounts of starch in the blends entail adding suitable functional groups on starch and other polymers in the blend to make them more compatible. The primary challenge is to develop fast reaction chemistries that can be transformed into viable processes and integrated into existing process lines with economically viable formulations. This article briefly reviews some of the most promising chemistries available for the reactive extrusion of starch-based polymer blends (biodegradable/non-biodegradable)

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Section: Other Grafting Reactionsmentioning

confidence: 99%

An Overview of Starch-Based Plastic Blends from Reactive Extrusion

Kalambur

Rizvi

2006

Journal of Plastic Film & Sheeting

139

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“…However, there are still a large number of heavy metals that are soluble in water after coagulation. They are mainly metal complexing species with different ligands (Patterson et al, 1977;Conner, 1990), and cannot be effectively removed by present various coagulants (Pledger et al, 1986). Therefore, the coagulation unit must be followed by other treatment units, for example, chemical precipitation, adsorption, ion exchange and membrane.…”

Section: Introductionmentioning

confidence: 98%

Study on the macromolecular coagulant PEX which traps heavy metals

Chang

Wang

2007

Chemical Engineering Science

108

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“…Of these graft copolymers, the starch-graftpolyacrylamide is the most important one, which can efficiently aggregate, dispersed particles in aqueous solution [3,4]. Generally, the flocs formed by applying flocculants alone will co-precipitate with heavy metal ions, but this co-precipitation result in very inefficient heavy metal ions removal [5]. Therefore, such an additional process as chemical precipitation, electrodialysis, ion exchange and reverse osmosis techniques must be employed to remove heavy metal ions from industrial effluents, but it will enhance running expense in spite of their effectiveness in metal ion removal.…”

Section: Introductionmentioning

confidence: 99%