Styrene → p-Trimethylsilylstyrene styrene

HRID 1768719Notes

Reaction equation

HRID 1768719 reaction equation
[CH3:1][Si:2]([CH3:12])([CH3:11])[C:3]1[CH:10]=[CH:9][C:6]([CH:7]=[CH2:8])=[CH:5][CH:4]=1.[CH2:13]=[CH:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1>>[CH3:12][Si:2]([CH3:1])([CH3:11])[C:3]1[CH:10]=[CH:9][C:6]([CH:7]=[CH2:8])=[CH:5][CH:4]=1.[CH2:13]=[CH:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

Participants

3

Reactant 2

HCID 7501StyreneHCID 595282Trimethyl(4-vinylphenyl)silane

Product 1

HCID 86748359p-Trimethylsilylstyrene styrene

Procedure

Copolymerization was carried out in the same manner as Example 7 by varying the feed ratio of p-trimethylsilylstyrene to styrene. The composition of the copolymer thus obtained was calculated in 13C-NMR analysis from the ratio of peak area at around 145 ppm to that at around 146 ppm. The results are given in Table 2. Also as a result of 13C-NMR analysis, a sharp peak assignable to quaternary carbons of aromatic ring was observed at around 146 ppm, demonstrating the syndiotactic configuration.

Workup

  1. customCopolymerization
  2. customThe composition of the copolymer thus obtained
  3. customAlso as a result of 13C-NMR analysis

Sources & evidence

ORD record
ord-5367b70c6ec04e9caab791c576905d2f
Source dataset
uspto-grants-1995_01
Patent number
US05378777

Reaction notes

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