Abstract: A hydrocarbon resin polymer including a repeating unit (A) is derived from dicyclopentadiene (DCPD). The hydrocarbon resin polymer has a fluorine substituent, and the content of the fluorine substituent is 100 to 4500 ppm based on the total weight of the hydrocarbon resin polymer. A manufacturing method of the above hydrocarbon resin polymer. The manufacturing method includes polymerizing a mixture in the presence of a fluorine-containing compound, wherein the fluorine-containing compound is a boron trifluoride complex and the mixture includes a dicyclopentadiene. A substrate structure includes a resin layer, and a conductive layer disposed on the resin layer. The resin layer is formed from a resin composition including the above hydrocarbon resin polymer using a cross-linking process.

Abstract: A resin composition includes 100 parts by weight of hydrocarbon resin polymers and 0.01 to 50 parts by weight of divinyl aromatic compound. A substrate structure includes a resin layer and a conductive layer disposed on the resin layer, wherein the resin layer is formed from the resin composition. A manufacturing method of the resin composition includes the following steps: providing a mixture, wherein the mixture includes a monovinyl aromatic compound and a divinyl aromatic compound, and optionally includes a bridged ring compound; polymerizing the mixture to form a crude composition; and purifying the crude composition to prepare the resin composition.