Unugyada polymer-ka ee silikoon waa silsilad -sida qaab dhismeed ay sameeyeen Si-O (silikon{2}}oxygen), qaybtooda ugu muhiimsanna waa polysiloxane toosan oo molar mass ah. Sababtoo ah Si -O-Si bond waa nooca curaarta aasaasiga ah, atomyada silikoonku waxay inta badan ku xidhan yihiin kooxaha methyl, iyo tiro aad u yar oo ah kooxaha aan dhergin ayaa lagu soo bandhigaa silsiladaha dhinaca.
Xoogaga intermolecular waa yar yihiin, molecules-yaduna waxay leeyihiin qaab-dhismeed helical ah. Kooxaha Methyl waxay u habaysan yihiin dibadda waxayna u wareegi karaan si xor ah, taas oo ka dhigaysa caag silikoon ah inay leeyihiin caabbinta kulaylka, dahaarka korantada, xasiloonida kiimikada, iwm marka loo eego caagadaha kale ee caadiga ah.
Caadi ahaan caag silikoon ah, oo ah polydiformaldehyde siloxane, waxay leedahay qaabayn unugyo helical ah oo leh xoogag yar yar oo intermolecular ah, sidaas darteed leh adkeysi aad u wanaagsan. Dhanka kale, kooxaha formaldehyde ee tilmaamaya meel ka baxsan helix-ga waxay u wareegi karaan si xor ah, kaas oo siinaya caag silikoon leh sifooyin dusha sare oo gaar ah sida hydrophobicity iyo dusha oog la'aan{1}