Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Andrew J. Holder"'
Autor:
Andrew J. Holder, Yi Liu
Publikováno v:
Journal of Polymer Research. 17:759-768
The reaction paths of 1,3-dioxan-2-one during cationic ring-opening polymerization have been explored by AM1 semiempirical calculations. A species evolution diagram has been established, and the propagation chain ends on the ether-oxygen of carbonyl
Publikováno v:
QSAR & Combinatorial Science. 27:841-849
The objectives of this study were to develop Quantitative Structure–Property Relationship (QSPR) models to predict Hildebrand solubility parameters (δt). The study investigated direct δt prediction by QSPR and indirect δt calculation from QSPR-p
Autor:
Jason Finley, DeAnna M. Travis, Gregory J. Giese, Andrew J. Holder, J. David Eick, Matthew D. Miller, Benjamin T. Iwai, Kathleen V. Kilway
Publikováno v:
Polymer. 47:8595-8603
Polymerization volume change (PVC) was measured systematically using mercury dilatometry for 41 epoxide and methacrylate monomers with quartz filler. Quantitative structure property relationship (QSPR) models were developed based on this previously u
Publikováno v:
QSAR & Combinatorial Science. 25:905-911
Refractive index (RI) is an important optical property for polymer matrices, especially when the color or tint of the cured material is of interest. This is certainly the case for dental restorative applications. In this work, results are presented f
Publikováno v:
QSAR & Combinatorial Science. 25:342-349
The Refractive Index (RI) is a basic optical property of organic matter. In our research on dental restorative materials, RI values of monomers are important, since they affect the penetration of initiating light pulses into the forming matrix. This
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 756:195-203
Quantum mechanical calculations were performed on copolymerization reactions for 1,5,7,11-tetraoxaspiro[5.5]undecane (TOSU) and bisphenol A diglycidyl ether (BADGE) to predict products formed. Proton affinities were compared to determine which monome
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 756:185-194
Spiroorthocarbonates have shown promise for use in polymerization reactions in which reduced shrinkage is desired. The purpose of this study was to use quantum mechanical methods to evaluate possible homopolymerization mechanisms to gain insight for
Autor:
Andrew J. Holder, J. David Eick, Kathleen V. Kilway, James Code, DeAnna M. Travis, Jamie E. Fleckenstein, Robert C. Clevenger, Kathleen R. Marzluf, Heather L. Vastlik, Cecil C. Chappelow, Gregory J. Giese
Publikováno v:
Macromolecular Theory and Simulations. 14:117-124
Rational design of polymer-based composites must include an understanding of how and why polymerization volume change occurs. Computational chemistry methods offer significant leverage in such processes. An obstacle to their use has been the meager a
Autor:
J. David Eick, Jill R. Guthrie, Andrew J. Holder, Charles S. Pinzino, Cecil C. Chappelow, Matthew D. Miller
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 43:5962-5970
In search of a composite with low stress and low shrinkage properties, this study includes matrix-assisted laser desorption/ionization time-of-flight analysis of the photoinitiated cationic polymerization between an expanding monomer [1,5,7,11-tetrao
Autor:
Andrew J. Holder, Charles S. Pinzino, Robert E. Smith, Elisabet L. Kostoryz, Jill R. Guthrie, Cecil C. Chappelow, Matthew D. Miller, David M. Yourtee, J. David Eick
Publikováno v:
Journal of Applied Polymer Science. 92:62-71
The objective was to study the photocationic polymerization of an expanding monomer, 1,5,7,11-tetraoxaspiro[5.5]undecane (TOSU), and an aromatic dioxirane, bisphenol A diglycidyl ether (BADGE). Both homopolymerizations and binary polymerizations were