Abstract
The results serves actual benefit that the viscosities of the resins can be easily adjustable by the adequate choice of the mixing ratios. The critical area to cause drastic change in photosensitivity is in a range of Xw from 0.35 to 0.60, which corresponds to 0.77 - 0.90 of the molar fraction of AL4 (Xm), or 0.45 - 0.69 of the molar fraction of allyl groups of AL4 (Xm’). It should be worth noting that in the shaded area, almost equal amounts of allyl groups are provided from both of the ene compounds of the AL16 (dendrimer) and the AL4 (reactive diluent). Detailed mechanism is under investigation.