Polímeros

 
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Métodos básicos de visualización de micro y nanoescructuras con el microscopio de fuerza atómica (AFM)

Principio

Aproximando una punta aguda de silicona montada en un voladizo (cantilever) para tomar una muestra de una superficie se produce una interacción a escala  atómica. El resultado es que el voladizo se curva, lo cual se detecta con láser. En modo ...

 
Detalles

Num.Producto: P2538000

Polímeros: descomposición térmica/óxidación de polímeros

Principle
Polymers decompose on heating. The oxidation products are essentially carbon dioxide and water. PE or PP should be used as plastic material, as here the pollution caused by the decomposition products is relatively small.

 

 
Detalles

Num.Producto: P7180000

Polímeros: detección de los componentes de los polímeros/test de Beilstein



Principle
Polymers decompose when heated. In decomposition products of some plastics the presence of carbon and hydrogen,
in addition to oxygen and chlorine, can be detected. Water is detected with copper sulphate and chloride by means of the Beilstein ...

 
Detalles

Num.Producto: P7180100

Decomposición de polímeros naturales: descomposición en almidón

Benefits
  • Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
  • Experiment is part of a complete solution set with experiments for the topic Chemistry of Polymers matched with international curriculum: all topics are covered

 

...
 
Detalles

Num.Producto: P7180200

Propiedades de los plásticos (1): propiedades mecánicas de los plásticos

What you can learn about
  •  Properties of polymers (plastics)

 

 
Detalles

Num.Producto: P7180400

Porpiedades de los plásticos (2): determinación de las densidades de los plásticos



Principle
Plastics have different densities. The range of a plastics density is between 0.8 and 2 g/cm3. The densities of some plastics are determined in this experiment.

 

What you can learn about

  • How to calculate the density of ...

 
Detalles

Num.Producto: P7180500

Propiedades de los plásticos (3): inflamabilidad



Principle
A characteristic feature of plastic materials is their flammability. Plastic materials can be differentiated by evaluating the degree of flammability in and out of the flame, the flame-coloration and the soot formation.This experiment represents an essential part of the ...

 
Detalles

Num.Producto: P7180600

Propiedades de los plásticos (4): deformabilidad

Principle
A characteristic feature of plastic materials is their meltability. Plastics can be differentiated by the degree of fusibility. In general, all plastic samples can be used for this experiment. Particularly suitable are the plastic samples named earlier, taken from the provided sample ...
 
Detalles

Num.Producto: P7180700

Propiedades de los plásticos (5): determinación del rango de fusión

What you can learn about
  •  How to measure the melting point of plastics

 

 
Detalles

Num.Producto: P7180800

Experimentos preliminares en la síntesis de plásticos (1): propiedades de los monómeros

Principle
Monomers must show specific reactive positions for chain formation. One possibility for such reactive structures represent molecules / molecules fragments with multiple bonds. The reaction behaviour of styrene is examined in this experiment. The decoloration of the bromine water and of ...
 
Detalles

Num.Producto: P7180900

Reacciones de polimerización (1): formación de las propiedades del poliestireno de los monómeros

What you can learn about
  •  Polymerization reaction to polystyrene

 

 
Detalles

Num.Producto: P7181000

Polimerización por crecimiento, etapas (1): formación de poliamida

Principle
Adipic acid and hexamethylene diamine react with each other to form a polymer. In this reaction, water is splitt off when the dimer is formed. The resulting dimer is capable of polymer formation due to the still present functional groups. This type of reaction is called ...

 
Detalles

Num.Producto: P7181200

Polimerización por crecimiento, etapas (2): producción de nylon

Principle
Sebacic acid chloride and hexamethylene diamine react with each to form a polymer. If the substances are dissolved in solvents of different density, the condensation occurs on the phase boundary. A thread can be continuously pulled out. The interfacial condensation is a ...
 
Detalles

Num.Producto: P7181300

Poliadición (1): Reacción aldólica

Principle
Aldehydes (and ketones) can be polymerized using a base-catalyst. Since in this reaction monomers are bonded to each other (under hydrogen relocation), this type of reaction is called polyaddition. A reaction of acetaldehyde by base catalysis is produced. The aldol reaction conducted ...
 
Detalles

Num.Producto: P7181600

Poliadición (2): Formación de poliuretano

Principle
(Poly)hydroxy compounds react with (poly)isocyanates by forming a polymer. Since this reaction is highly exothermic, the resulting plastic is formed by evaporating propellant. Foams can be also formed by gases originating during this reaction. Polyurethane foam is produced in ...
 
Detalles

Num.Producto: P7181700

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