| 摘要 |
NEW MATERIAL:The unsaturated compound of formulaI(R is H or CH3; m is 0 or 1-3; n is 1-3). USE:It copolymerizes easily with a resin containing unsaturated group in the presence of heat, ultraviolet ray, ionizing radiation, or radical initiation agent, and gives a cured film having excellent durability. PROCESS:The compound of formulaIis prepared by esterifying the compound of formula II obtained by the addition of epsilon-caprolactone to hydroxypivalyl hydroxypivalate with acrylic acid or methacylic acid. It is preferable to carry out the esterification reaction at 75-120 deg.C to shorten the reaction time and to prevent the polymerization of the product.
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