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Sullivan, A.; Hill, Robert G.

doi:10.1023/a:1004763815097

Cited by 16 publications

(8 citation statements)

References 20 publications

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“…They have indicated that Young's modulus was independent of the molar mass of the polymer phase of GPCs, agreeing with the literature [30,65]. Young's modulus is not predicted to rise with increased molar mass, according to the reptation theory [62,66], but is, instead, dominated by the strength and number of interactions in the polymeric phase, in particular the number and strength of ionic cross-links. Altering the molar mass of the PAA will not affect the concentration or number of functional carboxylate groups present for cross-linking [62,66], which provides evidence of why Young's modulus is independent of the molar mass of the polymer phase.…”

Section: Effect Of the Paa Molar Masssupporting

confidence: 80%

“…In several studies, flexural strength has been observed to increase with molar mass [62,66,67], as evident from the data obtained by Griffin and Hill (Table 1). However, this increase is more pronounced for GPCs produced using higher molar mass acids [31,66]. This may indicate that, although chain pullout is the predominant mechanism involved in fracture, it may not be the only one.…”

Section: Effect Of the Paa Molar Masssupporting

confidence: 62%

“…Altering the molar mass of the PAA will not affect the concentration or number of functional carboxylate groups present for cross-linking [62,66], which provides evidence of why Young's modulus is independent of the molar mass of the polymer phase. In several studies, flexural strength has been observed to increase with molar mass [62,66,67], as evident from the data obtained by Griffin and Hill (Table 1). However, this increase is more pronounced for GPCs produced using higher molar mass acids [31,66].…”

Section: Effect Of the Paa Molar Massmentioning

confidence: 94%

“…Young's modulus is not predicted to rise with increased molar mass, according to the reptation theory [62,66], but is, instead, dominated by the strength and number of interactions in the polymeric phase, in particular the number and strength of ionic cross-links. Altering the molar mass of the PAA will not affect the concentration or number of functional carboxylate groups present for cross-linking [62,66], which provides evidence of why Young's modulus is independent of the molar mass of the polymer phase. In several studies, flexural strength has been observed to increase with molar mass [62,66,67], as evident from the data obtained by Griffin and Hill (Table 1).…”

Section: Effect Of the Paa Molar Massmentioning

confidence: 99%

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The role of poly(acrylic acid) in conventional glass polyalkenoate cements

Alhalawani

Curran

Boyd

et al. 2015

Journal of Polymer Engineering

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Abstract Glass polyalkenoate cements (GPCs) have been used in dentistry for over 40 years. These novel bioactive materials are the result of a reaction between a finely ground glass (base) and a polymer (acid), usually poly(acrylic acid) (PAA), in the presence of water. This article reviews the types of PAA used as reagents (including how they vary by molar mass, molecular weight, concentration, polydispersity and content) and the way that they control the properties of the conventional GPCs (CGPCs) formulated from them. The article also considers the effect of PAA on the clinical performance of CGPCs, including biocompatibility, rheological and mechanical properties, adhesion, ion release, acid erosion and clinical durability. The review has critically evaluated the literature and clarified the role that the polyacid component of CGPCs plays in setting and maturation. This review will lead to an improved understanding of the chemistry and properties of the PAA phase which will lead to further innovation in the glass-based cements field.

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Section: Effect Of the Paa Molar Masssupporting

confidence: 80%

Section: Effect Of the Paa Molar Masssupporting

confidence: 62%

Section: Effect Of the Paa Molar Massmentioning

confidence: 94%

Section: Effect Of the Paa Molar Massmentioning

confidence: 99%

See 2 more Smart Citations

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

Alhalawani

Curran

Boyd

et al. 2015

Journal of Polymer Engineering

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“…The acid was coded E7 and had an average molar mass (M n ) of 8,140 [18]. The acid was freeze-dried, ground and sieved through a <90 µm filter.…”

Section: Polyacrylic Acid (Paa)mentioning

confidence: 99%

The antibacterial effects of zinc ion migration from zinc-based glass polyalkenoate cements

Boyd

Tanner

et al. 2006

J Mater Sci: Mater Med

118

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Zinc-based glass polyalkenoate cements have been synthesised and their potential use in orthopaedic applications investigated. Zinc ions were released from the materials in a rapid burst over the first 24 h after synthesis, with the release rate falling below detectable levels after 7 days. Cement-implanted bone samples were prepared and the released zinc was shown, using energy dispersive X-ray analysis, to penetrate from the cement into the adjacent bone by up to 40 µm. Finally, the cements exhibited antibacterial activity against Streptococcus mutans and Actinomyces viscosus that reflected the pattern of zinc release, with the inhibition of growth greatest shortly after cement synthesis and little or no inhibition measureable after 30 days.

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Influence of Preparation Techniques on the Properties of Bioactive Glasses

Kaur

2017

Bioactive Glasses

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Untitled

Cited by 16 publications

References 20 publications

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

The antibacterial effects of zinc ion migration from zinc-based glass polyalkenoate cements

Influence of Preparation Techniques on the Properties of Bioactive Glasses

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