polyterpenes

pol·y·ter·penes

(pol'ē-ter'pēnz),

Acyclic polymers containing a large number of isoprene subunits, usually unsaturated.

Synonym(s): polyisoprenes, polyisoprenoids

Farlex Partner Medical Dictionary © Farlex 2012

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References in periodicals archive ?

However, NR alone does not exhibit sufficient adhesive tack, which can be defined as the ability to adhere to other materials with dissimilar compositions [1], Therefore, tackifying resins (e.g., rosin derivatives, aliphatic or aromatic hydrocarbon resins, and polyterpenes) are typically used to improve the surface adhesion of NR to other materials [2, 3].

Synthesis of Modified Natural Rubber With Grafted Poly(acetoacetoxyethyl methacrylate-co-methyl methacrylate) and Performance of Derived Adhesives With GTA Crosslinker

Depending on the number of blocks, they can be classified as monoterpenes (C10), sesquiterpenes (C15), diterpenes (C20), triterpenes (C30), tetraterpenes (C40), and polyterpenes [21].

Improving In Vivo Efficacy of Bioactive Molecules: An Overview of Potentially Antitumor Phytochemicals and Currently Available Lipid-Based Delivery Systems

They are classified as hemiterpenes (C5), monoterpenes (C10), sesquiterpenes (C15), diterpenes (C20), sesterpenes (C25), triterpenes (C30), tetraterpenes (C40), and polyterpenes (>C40).

Potential of Terpenoids and Flavonoids from Asteraceae as Anti-Inflammatory, Antitumor, and Antiparasitic Agents

The adhesive composition comprises an amorphous polyalpha-olefin and a tackifier selected from at least one of the group consisting of: petroleum distillates, rosin, rosin esters, and polyterpenes. The bonded structure has a dynamic peel strength between about 150 and about 1000 grams per 25 millimeters.

Tackified Amorphous-Poly-Alpha-Olefin-Bonded Structures: No. 7,517,579; Stephen Campbell, Daniel Hesse, Richard Schultz, Mark Jung, Richard Hansen; Cristian Neculescu, Sandra Rogers, Violet Grube, Rhiannon Thoresen, Thomas Killian, Jonathan Rice, Palani Wallajapet, Courtney Shea, Jason Fairbanks, Prasad Potnis and Randall Palmer, assignors to Kimberly-Clark Worldwide, Inc., Neenah, WI

Absorptions at 1170 and 1145 [cm.sup.-1] typical of isopropyl groups derived from lignin decomposition are more visible in semicoking liquids, while mono-, sesqui-, and polyterpenes manifest themselves at 2800-3000 and 800-840 [cm.sup.-1] conspicuously in bark- and needle-derived liquids.

Trends in biomass thermochemical liquefaction: global experience and recent studies in Estonia/Biomassi termokeemiline vedeldamine: maailmapraktika ja hiljutised uuringud Eestis

Rosin derivatives, polyterpenes and petroleum resins can be used for pressure-sensitive adhesives.