Copolymerisation of 2-hydroxyethyl methacrylate with siloxanyl monomers

Al-Issa, Mahmoud A.; Davis, Thomas P.; Huglin, Malcolm B.; Yahya, Ishak B.; Yip, Daniel C. F.

doi:10.1016/0014-3057(84)90075-2

Cited by 19 publications

(2 citation statements)

References 13 publications

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“…As shown in Figure , the crosslink density of PDMAEMA hydrogels also increases in this range. Since the comonomer HEMA contains a small amount of native crosslinker (EGDMA), which is formed as a result of self Michael addition reaction, the extent of the crosslinking density as well as the degree of swelling will also vary as a function of HEMA content . However, further increase in HEMA content, slightly decreases the N values of the hydrogels.…”

Section: Resultsmentioning

confidence: 99%

Correlation Between Physicomechanical and Swelling Properties of Weakly Basic Copolymer Hydrogels Based on (Meth)acrylate Polycations as New Smart Materials

Celik

Orakdöğen

2015

Macro Chemistry & Physics

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Tayyibe Celik , Nermin Orakdogen* 2-Hydroxyethyl methacrylate (HEMA) is incorporated to N,N -dimethylaminoethyl methacrylate (DMAEMA) fabricating a series of stimuli-responsive copolymer hydrogels by free radical copolymerization. The increasing comonomer content via adding more HEMA results in a higher network density and, therefore, a lower equilibrium swelling ratio. The uniaxial compressive testing results showed that increasing HEMA in the feed improved the mechanical strength of P(DMAEMA-co-HEMA) hydrogels. As HEMA increased, the elastic modulus as well as the effective crosslinked chain density increased. The work strives to provide method to tune mechanical and physical properties for weakly basic copolymer hydrogels based on (meth)acrylate polycations, which is hopefully to guide the design of hydrogels with desirable properties.

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Section: Resultsmentioning

confidence: 99%

Correlation Between Physicomechanical and Swelling Properties of Weakly Basic Copolymer Hydrogels Based on (Meth)acrylate Polycations as New Smart Materials

Celik

Orakdöğen

2015

Macro Chemistry & Physics

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“…HEMA (Sigma, U.K.) was purified by repeated solvent extraction and vacuum distillation. 20 The purity was checked by gas chromatography using a 1.5 m X 3.2 mm x 2.0 mm stainless steel column packed with 7.5% w/w sucrose acetate isobutyrate on Chromosorb G100-120 mesh and was shown to be 99.9 %. Ethylene glycol dimethacrylate (EDMA) (Ancomer, ATM3) was used as supplied.…”

Section: Methodsmentioning

confidence: 99%