Acrylic superabsorbents: a meticulous investigation on copolymer composition and modification

Jiang, Jiaqiao; Zhao, Shuai

doi:10.1007/s13726-014-0230-2

Cited by 8 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is evident from the Figure 2 that the swelling capacity of copolySAP first increases with the initiator concentration and then decreases. Similar Gaussian distribution behavior is also reported by other studies [24][25][26]. The initial increase in the swelling capacity might be attributed to the optimum amount of radicals to produce high molecular weight SAP with sufficient density of hydrophilic groups (-COOH, -CONH, -COO -) and gel strength [25].…”

Section: Effect Of Initiator Concentration On Swelling Capacitysupporting

confidence: 85%

Synthesis of Superabsorbent Polymer (SAP) via Industrially Preferred Route

Rafiq

Syed

2016

J. Basic Appl. Sci.

View full text Add to dashboard Cite

The assigned study is dedicated to the synthesis, improvement and characterization of acrylic-based superabsorbent polymers (SAPs) which can be used in versatile applications notably in disposable diapers and pharmaceutics. The industrially preferred solution polymerization route and low cost monomers were used to synthesize SAPs. Homopolymer and copolymer based SAPs were prepared with varying amount of cross-linker and initiator concentrations and compared for swelling rate with a commercially available SAP sample. Swelling capacity linearly decreases with increase in cross-linker content for both the synthesized SAPs samples whereas it first increases and then decreases with initiator content for the synthesized copolymer SAP. Swelling kinetics of the synthesized and commercial SAPs were modelled using model equation proposed by Omidian et al. Both the synthesized SAPs showed substantial increase in swelling capacity whereas copolymer SAP exhibited the highest swelling rate (rate parameter 2.78 min) when compared to homopolymer SAP and the commercially available SAP samples. Accordingly, the copolymer SAP may find its application in disposable diapers or pharmaceutics where the higher swelling rate is of prime importance. Copolymer and commercially available SAPs depicted significant decrease in swelling capacity even at very low saline solution concentration (0.01 %).

show abstract

Section: Effect Of Initiator Concentration On Swelling Capacitysupporting

confidence: 85%

Synthesis of Superabsorbent Polymer (SAP) via Industrially Preferred Route

Rafiq

Syed

2016

J. Basic Appl. Sci.

View full text Add to dashboard Cite

show abstract

“…Additionally, the fact that the nano-hybrid SAP composite synthesized with 6 and 12 wt% diatomite was higher than 94% indicated that the sol content in the composite and the effects of homopolymers on the monomer reactivity ratio could be low and ignored. 27 3.3. Factor contents effect on water absorbency of the HECg-PAA/diatomite nano-hybrid SAP composite 3.3.1.…”

Section: The Composite Gel Content Resultsmentioning

confidence: 99%

“…The synthesized nano-hydrogel SAP composite gel and sol content were measured according to the method published elsewhere. 27 Typically, the dry powdered sample was extracted with tetrahydrofuran (THF) by a Soxhlet extractor. From the beginning, the thimble lter was dried in the oven heated at 60 C overnight and weighed (W 1 ).…”

Section: Gel Content Measurementmentioning

confidence: 99%