Using Plasticizers to Control the Hydrocarbon Selectivity
This paper shows for the first time that the selectivity and sensitivity of a poly (methyl methacrylate) (PMMA) based QCM sensor can be significantly enhanced for aromatic hydrocarbons by incorporating a plasticizer into the polymer film.
Advances in Chemistry (ACS Publications)
Polymeric Plasticizers HEINRICH HOPFF Chapter 8, 87-94 DOI: 10.1021/ba-1965-0048.ch008 Publication Date (Print): January 1, 1965 Abstract PDF ABSTRACT Plasticizer Analysis Using Chromatographic Methods DIETRICH BRAUN Chapter 9, 95-107 DOI: 10.1021/ba-1965-0048.ch009 Publication Date (Print): January 1, 1965 Abstract PDF ABSTRACT
Full article: Review of novel energetic polymers and binders
2. Azido polymers. Advances in the energetic polymers and plasticizers in the past several decades saw few candidates with exceptional properties, such as glycidyl azide polymer (GAP). GAP was first synthesized in 1972 by Vandenburg from the reaction of sodium azide and polyepichlorohydrin (PECH) in dimethylformamide (DMF) [Citation 11].
Polymeric Plasticizers - Advances in Chemistry (ACS Publications)
8 Polymeric Plasticizers HEINRICH H O P F F Swiss Federal Institute of Technology, Zurich, Switzerland P o l y m e r i c p l a s t i c i z e r s c a n b e m a d e b y : (1) I n ternal plasticization w h e r e b y
Polymers | Free Full-Text | Plasticizers Derived from Biomass
The experiment shows that elongation at break of PVC materials plasticized with natural polymeric plasticizer reaches 371.2%. To learn more about rice fatty acid, Machado et al. obtained two natural epoxidized plasticizers from peracetic acid (NP-Ac) and peroctanoic acid (NP-Oc).
- Why do polymers need plasticizers?
- The plasticizers reduce the glass transition temperature, and the viscosity of the polymer also enhances the flexibility and processability of polymer materials. The main problem of these additives is that, over time, they migrate from the polymeric matrix and exude to the surface of polymeric matrix.
- Do plasticizers increase polymers' flexibility at room temperature?
- Disentanglement of CA chains is favored at higher plasticizer content under extensional flow, yielding lower melt strength and higher melt extensibility . These observations confirm that plasticizers increase polymers' flexibility at room temperature and can be used as processing aids.
- Do plasticizers covalently bond to polymeric chains?
- An approach that has recently been of great interest to researchers is the use of reactive plasticizers. In this approach, plasticizers covalently bond to the polymeric chains and prevent migration. Chapter 22. Solubility of plasticizers, polymers and environmental pollution Thermodynamics, solubility and environmental issues
- How do plasticizers affect material degradation?
- As plasticizers, additives influence the material's degradability due to their hydrophilicity/hydrophobicity behavior. Since water is the primary cause of deacetylation, incorporating hydrophilic plasticizers or blend components could foster material degradation.
- How can plasticizers be used in industrial applications?
- External plasticization using low molecular weight plasticizers is the most widely applied approach in industrial applications. The glass transition temperatures and the mechanical properties (elastic modulus) of CA systems with different plasticizer contents are reported in Table 2.
- How does a plasticizer interact with a polymer?
- In CA, plasticizer-polymer interactions begin with the mixing step: the plasticizer first wets the polymer particles and then diffuses and solvates the amorphous domains of the polymer thanks to externally added heat (e.g., heating jacket on the mixer) or heat generated internally by the friction between macromolecules.
