Functional polymers and sequential copolymers by phase transfer catalysis vii. Synthesis and characterization of alternating block copolymers of aromatic poly(ether sulfone)s with aliphatic polysulfldes and aliphatic polysulfones
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ABSTRACT α,ω-Di(bromo)polyhexamethylenesulfides were polyetherified with α,ω-di(phenol)aromatic poly(ether sulfone)s in the presence of tetrabutylammonium hydrogen sulfate (stoichiometric
amounts _versus_ phenolic end groups) as phase transfer catalyst, in a two phase system of 50 wt% aqueous NaOH solution and monochlorobenzene. The alternating block copolymers obtained, were
transformed into polyhexamethylenesulfone–aromatic poly(ether sul-fone) alternating block copolymers by oxidation with _m_-chloroperbenzoic acid in chloroform solution. DSC analysis of both
types of alternating block copolymers show phase separation, due to the crystallization of the polyhexamethylenesulfide or polyhexamethylenesulfone blocks. SIMILAR CONTENT BEING VIEWED BY
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Article 25 August 2022 ARTICLE PDF REFERENCES * V. Percec and B. C. Auman, _Makromol. Chem._, 185, 617 (1984). Article CAS Google Scholar * V. Percec, B. C. Auman and P. L. Rinaldi,
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Science, Case Western Reserve University, V Percec, H Nava & B C Auman Authors * V Percec View author publications You can also search for this author inPubMed Google Scholar * H Nava
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AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Percec, V., Nava, H. & Auman, B. Functional Polymers and Sequential Copolymers by Phase Transfer Catalysis
VII. Synthesis and Characterization of Alternating Block Copolymers of Aromatic Poly(ether sulfone)s with Aliphatic Polysulfldes and Aliphatic Polysulfones. _Polym J_ 16, 681–691 (1984).
https://doi.org/10.1295/polymj.16.681 Download citation * Issue Date: 01 September 1984 * DOI: https://doi.org/10.1295/polymj.16.681 SHARE THIS ARTICLE Anyone you share the following link
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content-sharing initiative KEYWORDS * Phase Transfer Catalyzed Polyetherification * α,ω-Di(bromo)polyhexamethylenesulfide * α,ω-Di(bromo)polyhexamethyl-enesulfone * α,ω-Di(phenol)aromatic
Poly(ether sulfone) * Alternating Block Copolymer * Phase Separation