Reactive interfaces

Keywords Block copolymers, Interface reactive injection moulding, Polyamide degradation, Polyolefine polyamide graft copolymers, PTFE polyamide materials... 

Interface Reactive Two-Component Injection Moulding (Core-Back Process).183... 

Interface Reactive Sandwich Moulding as a Special Two-Component Injection... 

The first results of an interface reactive injection moulding by two-component injection moulding (Fig. 11) are listed in Table 11. 

Fig. 12 Interface reactive two-component injection moulding - bond strength in dependence on the type of diisocyanate and TPU elastomer. Bond strength between PA-6/TPU. PA-6 Ultramid B3S TPU Elastollan 1185A, Elastolian B 85A, Eiastollan C 85A, Elastollan C 60D. Modifiers diisocyanates MDI, IPDI, IPDI-Uretdion, PBDI, Oligomer-TDI-DI. Addition of 1 up to 5 wt% ...

Fig. 13 Interface reactive two-component injection moulding - image of fractured specimen after tensile test, polyamide bulk material on the TPU fracture surface (right - fracture with coloured TPU part for differentiation)...

Table 12 Interface reactive two-component injection moulding — bond strength betweai different polyamide materials [32]...

At low to values in the AOT reversed micelle, significantly more cis isomer is formed from cation 2 than from cation 1. This difference could be attributed to a difference in the alignment at the interface, reactivity, or pKa values between the two cations. The absorption spectrum of 2-stilbazole is significantly blue shifted relative to the protonated form. The slight blue shift of the 2-stilbazolium absorption spectrum with increasing co could suggest that deprotonation occurs with increasing water pool size. 

Also, dielectric materials, especially, during the exposure to the atmosphere, absorb water and OH leads to detrimental interface reactions and water absorption and interface reactivity of yttrium oxide gate dielectrics on silicon was investigated. From the infrared absorption analysis, water vapor was significantly absorbed in the atmosphere. Similar oxidation are expected other high-K materials while the rate of OH absorption is expected to depend on the deposition process and their thermal history [29]. 

Rizkalla et al. [79] studied the influence of surface fractality on the solid-liquid interface reactivity of magnesium oxides, hydroxides and silicates by determining... 

AIF-Research Report (2001) Interface reactive two component injection molding for hard-soft composites, AIF-Vorhaben-Nr. 12116B (in German). 

In 1972 the photovoltaic effect was first demonstrated in devices with nematic liquid crystals by means of ionic conduction [36]. Although electronic charge transport was widely researched in these materials [37, 38], it was not until 2006 that electronic conduction was first applied to photovoltaics in nematics [39]. A novel approach based on reactive mesogens was used to create a D-A bilayer with a distributed interface. Reactive mesogens are polymerisable equivalents of small molecule LCs, but with two additional polymerisable groups, one at each end of a flexible aliphatic spacer attached to the aromatic core. Chapters 2 and 5 discusses charge transport in these materials. Figure 8.8 illustrates the photopolymerisation of such molecules. 

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