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2. Polymer stabilizer - Wikipedia

   en.wikipedia.org/wiki/Polymer_stabilizer

   The aminoxyl radical (N-O•) combines with free radicals in polymers: N-O• + R• → N-O-R Although they are traditionally considered as light stabilizers, they can also stabilize thermal degradation. Even though HALS are extremely effective in polyolefins, polyethylene and polyurethane, they are ineffective in polyvinyl chloride (PVC). It ...

3. Hindered amine light stabilizers - Wikipedia

   en.wikipedia.org/wiki/Hindered_amine_light...

   Hindered amine light stabilizers (HALS) are chemical compounds containing an amine functional group that are used as stabilizers in plastics and polymers. [1] These compounds are typically derivatives of tetramethylpiperidine and are primarily used to protect the polymers from the effects of photo-oxidation; as opposed to other forms of polymer degradation such as ozonolysis.

4. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   Desktop publishing (DTP) application allows opening and editing of PDF documents; Allows compatible saving as PDF 1.3, 1.4, 1.5 and 1.7 and supports also PDF/X1, PDF/X1a and PDF/X-3. pdf-parser: Public Domain Python script Yes Extraction and analysis tool, handles corrupt and malicious PDF documents. PDFedit: GNU GPL: Yes Yes BSD Yes

5. Skim (software) - Wikipedia

   en.wikipedia.org/wiki/Skim_(software)

   Skim is an open-source PDF reader. It is notably the first free software PDF reader for macOS. [2] It is written in Objective-C, and uses Cocoa APIs. It is released under a BSD license. It is also cited as being able to help annotate and read scientific papers. [3]

6. Polymerisation inhibitor - Wikipedia

   en.wikipedia.org/wiki/Polymerisation_inhibitor

   This is referred to as air inhibition and is a diffusion-controlled reaction with rates typically in the order of 10 7 –10 9 mol −1 s −1, [3] the resulting peroxy radicals (ROO•) are less reactive towards polymerisation. However air stabilisation is not suitable for monomers with which it can form explosive peroxides, such as vinyl ...

7. Thermostability - Wikipedia

   en.wikipedia.org/wiki/Thermostability

   Crystal structure of β-glucosidase from Thermotoga neapolitana (PDB: 5IDI).Thermostable protein, active at 80°C and with unfolding temperature of 101°C. [1]In materials science and molecular biology, thermostability is the ability of a substance to resist irreversible change in its chemical or physical structure, often by resisting decomposition or polymerization, at a high relative ...

8. Stabilizer (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Stabilizer_(chemistry)

   In industrial chemistry, a stabilizer or stabiliser is a chemical that is used to prevent degradation. [1] Above all, heat and light stabilizers are added to plastic and rubber materials because they ensure safe processing and protect products against aging and weathering.

9. Thermosetting polymer - Wikipedia

   en.wikipedia.org/wiki/Thermosetting_polymer

   In materials science, a thermosetting polymer, often called a thermoset, is a polymer that is obtained by irreversibly hardening ("curing") a soft solid or viscous liquid prepolymer . [1] Curing is induced by heat or suitable radiation and may be promoted by high pressure or mixing with a catalyst .