Popcorn-polymer formation during hydrogel synthesis

Baker, John P.; Blanch, Harvey W.; Prausnitz, John M.

doi:10.1016/0966-7822(94)00007-t

Cited by 2 publications

(2 citation statements)

References 18 publications

(13 reference statements)

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“…This phenomenon was first observed by Gallacher and Bettelheim using optical methods42 and detected in other systems 43, 44. Another occasionally occurring, macroscopically observable, inhomogeneity in hydrogel structure is the formation of popcorn polymer 45, 46. A hydrogel with popcorn domains is shown in Fig.…”

Section: Synthetic Hydrogelsmentioning

confidence: 62%

Hydrogels as smart biomaterials

Kopeček

Yang

2007

Polymer International

391

287

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Hydrogels were the first biomaterials rationally designed for human use. Beginning with the pioneering work of Wichterle and Lím on three-dimensional polymers that swell in water, we review the design, synthesis, properties, and applications of hydrogels. The field of hydrogels has moved forward at a dramatic pace. The development of suitable synthetic methods encompassing traditional chemistry to molecular biology has been used in the design of hydrogels mimicking basic processes of living systems. Stimuli-sensitive hydrogels, hydrogels with controlled degradability, genetically engineered poly(amino acid) polymers reversibly self-assembling in precisely defined three-dimensional structures, and hybrid polymers composed of two distinct classes of molecules are just some examples of these exciting novel biomaterials. The biocompatibility of hydrogels and their applications from implants to nanomaterials are also reviewed.

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Section: Synthetic Hydrogelsmentioning

confidence: 62%

Hydrogels as smart biomaterials

Kopeček

Yang

2007

Polymer International

391

287

View full text Add to dashboard Cite

show abstract

“…The low sponge EWC values, together with the disappearance of the phenomenon at higher initiator levels, are consistent with previous observations. 16 As the initiator concentration was increased to between 0É05 and 0É25 wt%, EWCs remained relatively constant, forming a small "peakÏ region in the plot of EWC versus initiator concentration. It is possible that at these initiator concentrations the rate of phase separation is close to that of gelation, and the sponge stratiÐcation becomes minimal.…”

Section: Cast and Equilibrium Water Contentmentioning

confidence: 98%