1,2-Diaminoethane-containing epoxy resins for separation of aldehydes

Bıçak, Niyazi; Soydan, A. Bahattin; Şenkal, Bahire Filiz; Koza, Güneş; Yener, Mine

doi:10.1016/s1381-5148(98)00010-8

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…This fact is surprising, given that polycondensations have gained significant prominence, as renewable polymers are produced mostly through step polymerization mechanisms. Previous studies regard the production of polycarbonates, ion exchange resins, adsorbents, heat‐resistant materials, and polyimides . In these previous works, it has been reported that a critical factor in suspension polycondensations is the prevention of coalescence and agglomeration and that this issue is even more important and difficult to control than in conventional suspension polymerizations performed through chain polymerizations in aqueous media.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for the Preparation of Poly(Butylene Succinate) Microparticles

Dutra

Nele

Pinto

2018

Macromolecular Symposia

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Studies regarding sustainability are growing, making the production of bio‐based polymer products, such as poly(butylene succinate) (PBS), a promising new alternative for sustainable development and manufacture of eco‐efficient products. In this context, the main objective of the present study is the production of PBS microbeads through a water‐free suspension polycondensation processes. The obtained results indicate that it is possible to produce PBS microbeads through polycondensation in heterogeneous media, overcoming the natural mass transfer limitations related to the removal of the condensation byproduct (water) from suspended particles, and simultaneously allowing for production of condensation polymer particles in the micrometric region. Besides, the proposed process route promoted shorter reaction times than conventional polycondensations and production of PBS microparticles with controlled sizes and molar mass distributions. The produced particles presented average sizes ranging from 80 to 180 μm, with melting points ranging from 105 to 112 °C and average molar masses around 1.3 × 104 Da.

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Section: Introductionmentioning

confidence: 99%

A Novel Approach for the Preparation of Poly(Butylene Succinate) Microparticles

Dutra

Nele

Pinto

2018

Macromolecular Symposia

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Preparation of Polymer Microparticles through Nonaqueous Suspension Polycondensations: Part V—Modeling and Parameter Estimation for Poly(butylene succinate) Polycondensations

Dutra

Oechsler

Brandão

et al. 2020

Macro Reaction Engineering

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Polycondensation polymers are normally produced through bulk and solution polymerization processes, which are characterized by significant mass and heat transfer constraints and difficult polymer purification (when prepared in solution). Therefore, it is desirable to develop industrial processes that can circumvent some of these limitations. Recently, a suspension polycondensation process has been developed, rendering the industrial process simpler and enabling the manufacture of polycondensation polymer microparticles. For this reason, the present work builds a phenomenological model to describe the analyzed suspension polycondensation reactions and estimate the model parameters required to simulate poly(butylene succinate) suspension polycondensations. It is shown that both the suspending medium and the reaction conditions can affect the mass transfer resistance for removal of water and that mass transfer rate coefficients are controlled mainly by reaction temperature and solubility of water in the suspending medium, leading to higher mass transfer rates when polymerizations are carried out in soybean oil (when compared to paraffin) at higher temperatures.

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Adsorption and separation of lignin-based aromatic aldehydes using macroporous resins

Dai

et al. 2015

Korean J. Chem. Eng.

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1,2-Diaminoethane-containing epoxy resins for separation of aldehydes

Cited by 6 publications

References 12 publications

A Novel Approach for the Preparation of Poly(Butylene Succinate) Microparticles

A Novel Approach for the Preparation of Poly(Butylene Succinate) Microparticles

Preparation of Polymer Microparticles through Nonaqueous Suspension Polycondensations: Part V—Modeling and Parameter Estimation for Poly(butylene succinate) Polycondensations

Adsorption and separation of lignin-based aromatic aldehydes using macroporous resins

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