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Radical copolymerization of 4-vinylbenzocyclobutene (VBCB) with styrene (St) afforded the copolymer (4-vinylbenzocyclobutene-co-styrene) (VBCBSt). Reaction of VBCB-St and divinyl tetramethyl disiloxane-bisbenzocyclobutene (DVSBCB) gave the oligomer (VBCB-St-DVSBCB), which was subsequently subjected to the cure reaction. The structures of VBCB-St and oligomer (VBCB-St- DVSBCB) were characterized by FTIR and  1 H NMR, which are in agreement with the proposed structures. Molecular weights of the synthesized polymers were estimated by gel permeation chromatography (GPC). Differential scanning calorimetry (DSC) showed that VBCB-St exhibited glass transition temperature (T g  &gt; 95 °C) however it is not the case for the oligomers (VBCB-St-DVSBCB). TG measurements indicated that the polymers had the good thermal stability with decomposition temperatures (T D  &gt; 370 °C). The polymer resin possessed good film planarization in the AFM images and the process of oligomer curing on a wafer without fusion and flow. These results indicated that the oligomer (VBCB-St- DVSBCB) is a promising film material with a relatively low cost.

e-polymers

Synthesis and property studies of oligomer obtained from the reaction of 4-vinylbenzocyclobutene and styrene with divinyl tetramethyl disiloxane-bisbenzocyclobutene