Photocurable and Thermosetting Polymer Materials on the Basis of Benzocyclobutene and Its Derivatives for Electronics

2-(Bicyclo[4.2.0]octa-1,3,5-trien-3-yl)-adamantan-2-ol

“…values of glass transition temperatures (that is relatively low for linear, non-crosslinked adamantane polymers) and high thermal stability [5][6][7].…”

“…The combination of benzocyclobutene and adamantane in a monomer or polymer seems attractive because a benzocyclobutene ring opens when heated above 200 • C and gives an active isomer (o-xylylene) that provides crosslinking of the polymer. BCB crosslinked polymers have high values of glass transition temperatures (that is relatively low for linear, non-crosslinked adamantane polymers) and high thermal stability [5][6][7].…”

“…In this study, we synthesized benzocyclobutyl and adamantyl containing hybride molecule-(2-(bicyclo[4.2.0]octa-1,3,5-trien-3-yl)-adamantan-2-ol) (5), which have free alcohol groups for further modifications. The obtained material can be useful for the developments of new materials with good thermal stability and dielectric properties.…”

Recent Advances in Benzocyclobutene Chemistry

“…For instance, ivabradine (Figure 1) is a well‐known marketed drug to treat heart related problems, which contains BCB as a structural unit [2] . The unique structural feature of BCB makes it a key precursor in synthetic organic chemistry due to the formation of very reactive intermediates o ‐quinodimethanes ( o ‐xylylenes) through cyclobutane ring opening [2e,f] . This intermediate can be trapped easily and it undergo, inter‐ and intramolecular Diels‐Alder reaction with diverse dienophile or dimerization and polymerization [3] .…”

Bicyclo[4.2.0]octa-1,3,5-trien-3-yl-dimethyl((E)-styryl)-silane

“…Dow chemicals (www.dow.com) presents a line of composite materials (CYCLOTENE™) with divinylsiloxane (DVS) and benzocyclobutene (BCB) based component as photoresists and thermosets (Divinyl siloxane bis-benzocyclobutene, DVS-BCB). In recent years, many new articles have appeared devoted to the development of hybrid silanes or siloxanes and BCB containing monomers [5][6][7][8][9][10]. The polymerization of these compounds occurs due to the presence of acrylate, silocyclobutene groups, alkenes (including vinyl, styryl, and allyl groups), etc.…”