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From Polymer to Monomer: Cleavage and Rearrangement of Si‐O‐Si Bonds after Oxidation Yielded an Ordered Cyclic Crystallized Structure
Author(s) -
Zuo Yujing,
Gou Zhiming,
Cao Jinfeng,
Yang Zhou,
Lu Haifeng,
Feng Shengyu
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502054
Subject(s) - monomer , ethanethiol , siloxane , dimer , cleavage (geology) , polymerization , polymer chemistry , chemistry , bond cleavage , polymer , rearrangement reaction , sulfone , yield (engineering) , materials science , organic chemistry , catalysis , fracture (geology) , metallurgy , composite material
Abstract Polymerization reactions are very common in the chemical industry, however, the reaction in which monomers are obtained from polymers is rarely invesitgated. This work reveals for the first time that oxone can break the Si‐O‐Si bond and induce further rearrangement to yield an ordered cyclic structure. The oxidation of P1 , which is obtained by reaction of 2,2′‐1,2‐ethanediylbis(oxy)bis(ethanethiol) (DBOET) with 1,3‐divinyl‐1,1,3,3‐tetramethyldisiloxane (MM Vi ), with oxone yielded cyclic crystallized sulfone–siloxane dimer ( P1‐ox ) after unexpected cleavage and rearrangement of the Si‐O‐Si bond.