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Die Polysiloxane, die in der Kettenverlängerungsreaktion eingesetzt werden, umfassen ein substantiell lineares Polymer der folgenden Struktur: R-Si(R 2 H-O-Si(R 2 Hn-O-SiR 3 The chain extension reaction may also include the reaction of an Si-OH group (e.g., a hydroxy-terminated polysiloxane) with an alkoxy group (e.g., alkoxysilanes, silicates, or alkoxysiloxanes) in the presence of a metal-containing catalyst to form polysiloxanes
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