Ionic Polymerization

Hungenberg, Klaus‐Dieter

doi:10.1002/9783527619870.ch7

Cited by 3 publications

(2 citation statements)

References 175 publications

(162 reference statements)

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“…Many commercial polymers produced this way are statistical or block copolymers with molecular weights (MWs) from a few hundred to several million. Conventionally, a block copolymer can be synthesized by a semibatch polymerization process by successive feeds of respective monomers . For instance, a block copolymer made from monomer A and B is shown in Figure with a cascade structure.…”

Section: Introductionmentioning

confidence: 99%

Reactor Modeling and Recipe Optimization of Ring-Opening Polymerization: Block Copolymers

Nie

Biegler

Villa

et al. 2013

Ind. Eng. Chem. Res.

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This paper addresses reactor modeling and recipe optimization of semibatch ring-opening polymerization processes for making block copolymers. Two rigorous reactor models are developed on the basis of the population balance and method of moments, respectively. The complete polymerization process model also includes vapor−liquid equilibrium equations from applying Flory−Huggins theory. The accuracies of both reactor models are validated against historical plant data by adjusting model parameters such as kinetic rate constants. The recipe optimization problem is formulated to design the optimal reactor operating policy to minimize polymerization time and incorporate additional process constraints in accordance with final product properties and process safety requirements. The resulting dynamic optimization problem is translated to a nonlinear program by using the simultaneous collocation method, and further solved by the interior point method. In the case study example, both reactor models show satisfactory matches between their predictions and the historical plant data. The recipe optimization with both models demonstrates significant process improvement and reductions in batch operating time. Moreover, the moment model shows superiority over the population balance model in terms of computational efficiency.

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Section: Introductionmentioning

confidence: 99%

Reactor Modeling and Recipe Optimization of Ring-Opening Polymerization: Block Copolymers

Nie

Biegler

Villa

et al. 2013

Ind. Eng. Chem. Res.

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“…These key areas are pointed out and discussed below. It should be clear to the reader that the list is intentionally restricted; other important topics have been considered in a previous publication …”

Section: Preparing For the Futurementioning

confidence: 99%

Models in the Polymer Industry: What Present? What Future?

Vale

Daiss

Naeem

et al. 2013

Macromolecular Symposia

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Summary An industrial perspective on the present and future role of kinetic and process models in the polymer industry is presented. A number of selected examples illustrate the current value of model‐based approaches in supporting and accelerating tasks like process optimization, product development and design of polymerization reactors. In addition, future trends for the application of models in the polymer industry are discussed and areas where further improvement is thought to be needed are carefully underlined.

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Polymerization and Manufacture of Polyoxymethylene

Fink¹

2014

Polyoxymethylene Handbook

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Ionic Polymerization

Cited by 3 publications

References 175 publications

Reactor Modeling and Recipe Optimization of Ring-Opening Polymerization: Block Copolymers

Reactor Modeling and Recipe Optimization of Ring-Opening Polymerization: Block Copolymers

Models in the Polymer Industry: What Present? What Future?

Polymerization and Manufacture of Polyoxymethylene

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