Copolymer composition in condensation copolymerization

Tyuzyo, Kiyoshi

doi:10.1002/pol.1965.100031028

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Copolycondensation Of Symmetric Monomers1

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1994

2004

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Cited by 3 publications

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“…The first classification of the processes of the linear copolycondensation may be that advanced by Shtraikhman [142], who derived an equation connecting the conversions of the functional groups of comonomers in an ideal irreversible interbipolycondensation. This equation was used to analyze the dependence of a copolymer composition on conversion at different stoichiometry of the initial monomers and their functional group reactivity [143]. A similar problem was also studied for a range of stoichiometric and kinetic parameters [144,145].…”

Section: Copolycondensation Of Symmetric Monomersmentioning

confidence: 99%

Development of a quantitative theory of polycondensation

Кучанов

2004

Progress in Polymer Science

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Section: Copolycondensation Of Symmetric Monomersmentioning

confidence: 99%

Development of a quantitative theory of polycondensation

Кучанов

2004

Progress in Polymer Science

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Cationic polymerization of bis(1‐alkylvinyl)benzene and related monomers, 7. Copolymers

Maier

Nuyken

Leitner

1994

Macro Chemistry & Physics

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Polyindanes with long alkyl side chains have been prepared by reaction of 1,4-bis(2-hydroxy-2-propy1)benzene (3) and 1,4-bis(2-hexadecen-2-yl)benzene (4) in various ratios. All copolymers are soluble in common organic solvents and have been characterized by NMR, IR, GPC, DSC and TG. The variation of the glass transition temperature Tg with the composition of the copolymers can be described satisfactorily by Couchman's equation, which describes the dependence of the Tg's of copolymers on the Tg's and heat capacities of the homopolymers and the weight fractions of the comonomers in the copolymers. A very important feature of this step-growth copolymerization is the ability of all possible end-groups of monomers and oligomers to react with each other. Therefore the composition of the copolymers is not governed by the composition of the feed, because there is no need for high conversion to obtain high molar mass. It was found that 3 was twice as reactive as 4. The experimentally determined composition of the copolymers is in good agreement with the calculations based on the differences in the reactivity of the monomers.

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