2007
DOI: 10.1002/app.25758
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Reducing volume shrinkage by low‐temperature photopolymerization

Abstract: Low-volume-shrinkage poly(triethylene glycol dimethacrylate) was made by photopolymerization at a low temperature. The final double-bond conversion and dynamic mechanical analysis indicated the optimal cure temperature to be À408C, at which a cured sample had less volume shrinkage than samples cured at room temperature but similar mechanical properties.

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Cited by 33 publications
(18 citation statements)
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“…Thermal analysis was performed with a TA DSC2000 differential scanning calorimeter. The shrinkage during polymerization was measured by the pycnometer method . The significance between values was calculated by one‐way analysis of variance (ANOVA) (Origin7.0 SRO, Northampton, MA, USA) and Tukey's test.…”
Section: Methodsmentioning
confidence: 99%
“…Thermal analysis was performed with a TA DSC2000 differential scanning calorimeter. The shrinkage during polymerization was measured by the pycnometer method . The significance between values was calculated by one‐way analysis of variance (ANOVA) (Origin7.0 SRO, Northampton, MA, USA) and Tukey's test.…”
Section: Methodsmentioning
confidence: 99%
“…Unlike other polymerization methods that usually require high temperature, photopolymerization can be performed at low temperatures below 0 °C. Our group has proved the feasibility of photopolymerization of acrylic acid at –70 °C with high double bond conversion of 96% . This unique advantage makes our route for the synthesis of macroporous polymers feasible.…”
Section: Introductionmentioning
confidence: 91%
“…The reduction of photopolymerization volume shrinkage has been the subject of numerous studies which could be summarized in three categories: change of photopolymerization conditions, [7][8][9][10][11] addition of fillers or additives, [12][13][14][15][16][17] and modification of monomer or oligomer structure. Among them, modifying monomer or oligomer structure was believed to be the most important and convenient way to achieve the low volume shrinkage, because changing photopolymerization conditions would increase the manufacture cost, and adding fillers or additives would deteriorate the transparency of materials.…”
Section: Introductionmentioning
confidence: 99%