Transformation reactions

Stewart, Malcolm

doi:10.1007/978-1-4684-1530-8_4

Cited by 3 publications

(1 citation statement)

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“…To solve this problem, a number of workers have examined the block copolymerization of two different types of monomers, such as hydrophilic and hydrophobic monomers, by the mechanism transformation method. 11 Because of the existence of tertiary oxonium ions and carboxonium ions during the cationic polymerization of acetals (e.g., trioxane, DOL, and DOP), 12 styrene was once cationically copolymerized with these monomers to prepare random copolymers. [13][14][15][16] However, the content of styrene unit in the copolymer was fairly low when high-molecular-weight copolymers was prepared, this was caused by the chain-transfer reaction of styryl cation to styrene monomer, thus no block copolymers of DOL or DOP with styrene were reported.…”

Section: Introductionmentioning

confidence: 99%

Block and star block copolymers by mechanism transformation. II. Synthesis of poly(DOP-b-St) by combination of ATRP and CROP

Pan

Tao

2000

J. Polym. Sci. A Polym. Chem.

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Section: Introductionmentioning

confidence: 99%

Block and star block copolymers by mechanism transformation. II. Synthesis of poly(DOP-b-St) by combination of ATRP and CROP

Pan

Tao

2000

J. Polym. Sci. A Polym. Chem.

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Radical/cation transformation polymerization and its application to the preparation of block copolymers

Kamachi

Guo

Kajiwara

1997

Macromolecular Symposia

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p-Methoxystyrene (MOS), butyl vinyl ether (BVE), and Nvinylcarbazole (VCZ) were polymerized in high yield by azohitiators such as 2, 2'-azodiisobutyronitrile (AIBN) in the presence of electron acceptors such as Phg+PF6-. An electron paramagnetic resonance (ESR) study of the model radicals of the propagating radical showed the transformation of the radical to the corresponding cation in the presence of the electron acceptors. In the case of BVE, the polymer formation was caused by cationic species produced by the transformation of the initiating radical. The polymerizations of MOS and VCZ were ascribed to the transformation of the growing radical to the corresponding cation during the propagation step which was classified as the radicaUcation transformation polymerization. Block copolymers of MOS/cyclohexene oxide (1,2-epoxycyclohexane) (CHO) and VWCHO were effectively prepared by the radicaUcation transformation polymerization of the appropriate monomers in the presence of AIBN, electron acceptor and CHO. The formation of block copolymers was characterized by turbidimetry, thin-layer chromatography, and solubility tests.

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Mechanistic transformations involving living and controlled/living polymerization methods

Yaǧcı

Taşdelen

2006

Progress in Polymer Science

336

244

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Transformation reactions

Cited by 3 publications

References 60 publications

Block and star block copolymers by mechanism transformation. II. Synthesis of poly(DOP-b-St) by combination of ATRP and CROP

Block and star block copolymers by mechanism transformation. II. Synthesis of poly(DOP-b-St) by combination of ATRP and CROP

Radical/cation transformation polymerization and its application to the preparation of block copolymers

Mechanistic transformations involving living and controlled/living polymerization methods

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