The volume shrinkage, thermal and sorption behaviour of polydiacrylates

Kurdikar, Devdatt L.; Peppas, Nikolaos A.

doi:10.1016/0032-3861(95)95304-j

Cited by 42 publications

(32 citation statements)

References 11 publications

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“…In addition, the relatively lower T d value of ES_0.3I could be caused by the unreacted monomers present in the crosslinked network. Moreover, an increase in the number of unreacted monomers will cause an increase in free volume of the materials and result in reduced thermal stability [19,23].…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Curing Characteristics and Thermal Properties of Epoxidized Soybean Oil Based Thermosetting Resin

Tan

Chow

2010

J Americ Oil Chem Soc

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Epoxidized soybean oil (ESO) was thermally cured using methylhexahydrophthalic anhydride (MHHPA) curing agent in the presence of 2-ethyl-4-methylimidazole (EMI) catalyst. The curing characteristics of ESO/MHHPA/ EMI systems were characterized using Fourier transform infrared spectroscopy (FTIR), a dynamic mechanical analyzer (DMA) and a differential scanning calorimeter (DSC). FTIR spectra showed that the polyesterification rate in ESO/MHHPA/EMI systems increased with increasing of the catalyst concentration. DSC thermograms indicated that EMI-catalyzed ESO/MHHPA systems experienced enthalpy relaxation at low EMI concentration whereas the extent decreased with increasing of the EMI concentration. There is a direct relationship between the degree of conversion and crosslink density of the thermal cured ESO/MHHPA/EMI systems with EMI concentration. The curing characteristics of thermal curable ESO thermosetting resins were found to have influence on the thermal properties of the ESO systems. It was determined that the glass transition temperature (T g ) and storage modulus (E 0 ) of cured ESO increased with increasing the EMI concentration whereas the damping properties of the ESO/MHHPA/EMI systems exhibited the reverse trend. It was found that the thermally curable ESO thermosetting resins experienced a two-stage thermal decomposition process.

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Section: Thermogravimetric Analysismentioning

confidence: 99%

Curing Characteristics and Thermal Properties of Epoxidized Soybean Oil Based Thermosetting Resin

Tan

Chow

2010

J Americ Oil Chem Soc

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“…Acrylates typically undergo rapid polymerization upon curing which is necessary in the formation of high quality H-PDLC's [5][6][7]. By mixing liquid crystal materials with acrlyates the electro-optical properties of the mixture may be enhanced; however, it is commonly known that many acrylate monomers shrink on the order of 10% to 15% upon polymerization [8]. In the past a number of models and experiments have been used to probe the formation of H-PDLC's, but have been specific to diffractive systems [9].…”

Section: Introductionmentioning

confidence: 99%

P‐81: In‐Situ Spectroscopy of Holographically formed Polymer Dispersed Liquid Crystal Materials for High Performance Reflective Display Applications

Warren

Sarkar

et al. 2001

Symp Digest of Tech Papers

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“…Many methods have been utilized to measure the volume change during polymerization, such as density determination, 14 dilatometry, 15 video imaging, 16 bond disk, 17 and linometer methods, 18 etc. In our study, the dynamic curing shrinkage of the UV-embossing resist was monitored by measuring the change of the polymer film thickness during curing, based on video imaging.…”

Section: Methodsmentioning

confidence: 99%

Model of curing shrinkage and kinetic parameters of an acrylate-based ultraviolet-embossing resist based on free volume theory

Liu

Lin

et al. 2013

J. Micro/Nanolith. MEMS MOEMS

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Free volume theory and a model of polymerization kinetics are introduced to predict and analyze the curing shrinkage and kinetic parameters of an acrylate-based ultraviolet-embossing resist. Curing shrinkage tests have been designed and performed to verify the accuracy of the model. The experimental results are in good agreement with the simulated results of the conversion behavior. The reaction coefficients of polymerization predicted by this model are essentially correct when compared to the classical experimental values. Moreover, the dynamic shrinkage during polymerization determined experimentally matches the simulated result predicted by our model. Downloaded From: http://nanolithography.spiedigitallibrary.org/ on 05/19/2015 Terms of Use: http://spiedl.org/terms J. Micro/Nanolith. MEMS MOEMS 023005-4 Apr-Jun 2013/Vol. 12(2) Liu et al.: Model of curing shrinkage and kinetic parameters of an acrylate-based ultraviolet-embossing. . . Downloaded From: http://nanolithography.spiedigitallibrary.org/ on 05/19/2015 Terms of Use: http://spiedl.org/terms

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The volume shrinkage, thermal and sorption behaviour of polydiacrylates

Cited by 42 publications

References 11 publications

Curing Characteristics and Thermal Properties of Epoxidized Soybean Oil Based Thermosetting Resin

Curing Characteristics and Thermal Properties of Epoxidized Soybean Oil Based Thermosetting Resin

P‐81: In‐Situ Spectroscopy of Holographically formed Polymer Dispersed Liquid Crystal Materials for High Performance Reflective Display Applications

Model of curing shrinkage and kinetic parameters of an acrylate-based ultraviolet-embossing resist based on free volume theory

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