ISSN:
0003-3146
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Description / Table of Contents:
Verschiedene Holzsorten wurden in Methylmethacrylat (MMA) oder in Mischungen von MMA mit anderen mehrfunktionellen Monomeren wie Äthylenglykoldimethacrylat (EGDMA), Triäthylenglykoldimethacrylat (TEGDMA), Trimethylolpropantrimethacrylate (TMPTMA) und Tetrahydrofurfurylmethacrylat (THFMA) imprägniert und unter verschiedenen Bedingungen (mit und ohne Zusatz von Benzolyperoxid) mi60Co-γ-Strah-len polymerisiert.Der Einfluß von Quellungsmitteln und mehrfunktionellen Monomeren wurde unter-sucht, konnte aber noch nicht endgültig geklärt werden, 30 kJ/Kg erwies sich als optimale Dosis zur Erreichung der niedrigsten Kompressibilität.
Notes:
Several samples of casuarina and other sorts of wood were impregnated in methyl methacrylate (MMA) or its mixture with some other specific multifunctional monomers, such as ethylene glycol dimethacrylate (EGDMA), triethylene glycol dimethacrylate (TEGDMA), trimethylol propane trimethacrylate (TMPTMA) and tetrahydrofurfuryl methacrylate (THFMA). The monomer or mixture of monomers in the treated samples was polymerized either by being subjected to γ-radiation from a60Co-γ-cell or by using 0.1 wt.-% of benzoyl peroxide, or by employing both methods.The use of swelling agents was found to influence the gained monomer, polymer and the physical properties of the treated products, though the specific multifunctional monomer role has not yet clearly been identified, due to the variation in uniformity of distribution of wood constituents from one test piece to the other. 30kJ/kg were found to be the optimal dose for the highest compression strength. With 2000 and a 500 curie-60Co sources, we found the same effect, and came to the conclusion that the dose rate was not important in the used ranges.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/apmc.1977.050650109
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