Nsonsonoe a ɛwɔ PDMS (polydimethylsiloxane, a wɔsan frɛ no dimethyl silicone ngo) mu no, nea ɛde ba titiriw ne sɛnea polymerization no te, na molecule nhyehyɛe no nso nya so nkɛntɛnso kakra (te sɛ awiei akuw no su). Nea edidi so yi yɛ nkyerɛkyerɛmu a ɛkɔ akyiri a efi nnuru nhyehyɛe ho adwene mu:
Sɛnea polymerization no te no ne ade titiriw a ɛkyerɛ sɛnea PDM ahorow no mu yɛ den.
PDMS no molecule nhyehyɛe no yɛ linear chain-te sɛ, a repeating unit no yɛ-Si(CH₃)1-O-, na wobetumi ada ne nsusuwii a ɛwɔ hɔ nyinaa adi sɛ: (CH₃)1sio-[Si(CH₃)} (CH₃)3 a N yε polymerization dodow (akwan a εsan ba bio).
Dodow a polymerization dodow no kɔ soro (dodow a N) : dodow no ara na molecule nkɔnsɔnkɔnsɔn no tenten no, dodow no ara na van der waals tumi ahorow (titiriw no ahoɔden a ɛpete) ntam molecule ahorow no yɛ den, na dodow no ara na nkɔnsɔnkɔnsɔn a ɛwɔ nkɔnsɔnkɔnsɔn ntam no kɔ soro, na ɛma nsu a ɛyɛ mmerɛw ne nsu a ɛyɛ den kɛse ba. Dodow a polymerization dodow no kɔ fam (N dodow a ɛyɛ ketewaa no), dodow no ara na molecule nkɔnsɔnkɔnsɔn no yɛ tiaa no, dodow no ara na tumi a ɛwɔ molecule ahorow ntam no yɛ mmerɛw, dodow no ara nkyere no, dodow no ara na nsu a ɛwɔ mu no yɛ papa, na ɛma nsu no mu nsu no kɔ fam.
Sɛ nhwɛso no, polymerization dodow a ɛba fam-Viscosity PDMs (te sɛ 100 mm2/s) taa yɛ nea ɛba fam koraa (N bɛyɛ du du pii). Degree a ɛyɛ polymerization a ɛkorɔn-Viscosity PDMs (te sɛ 100,000 mm2/s) betumi ayɛ kɛse te sɛ ɔhaha pii anaa mpempem mpo.