Glycolic acid chemical structure

See also PBT degradation structure and properties of, 44-46 synthesis of, 106, 191 Polycaprolactam (PCA), 530, 541 Poly(e-caprolactone) (CAPA, PCL), 28, 42, 86. See also PCL degradation OH-terminated, 98-99 Polycaprolactones, 213 Poly(carbo[dimethyl]silane)s, 450, 451 Polycarbonate glycols, 207 Polycarbonate-polysulfone block copolymer, 360 Polycarbonates, 213 chemical structure of, 5 Polycarbosilanes, 450-456 Poly(chlorocarbosilanes), 454 Polycondensations, 57, 100 Poly(l,4-cyclohexylenedimethylene terephthalate) (PCT), 25 Polydimethyl siloxanes, 4 Poly(dioxanone) (PDO), 27 Poly (4,4 -dipheny lpheny lpho sphine oxide) (PAPO), 347 Polydispersity, 57 Polydispersity index, 444 Poly(D-lactic acid) (PDLA), 41 Poly(DL-lactic acid) (PDLLA), 42 Polyester amides, 18 Polyester-based networks, 58-60 Polyester carbonates, 18 Polyester-ether block copolymers, 20 Polyester-ethers, 26... 

PTT is made by the melt polycondensation of PDO with either terephthalic acid or dimethyl terephthalate. The chemical structure is shown in Figure 11.1. It is also called 3GT in the polyester industry, with G and T standing for glycol and terephthalate, respectively. The number preceding G stands for the number of methylene units in the glycol moiety. In the literature, polypropylene terephthalate) (PPT) is also frequently encountered however, this nomenclature does not distinguish whether the glycol moiety is made from a branched 1,2-propanediol or a linear 1,3-propanediol. Another abbreviation sometimes used in the literature is PTMT, which could be confused with poly(tetramethylene terephthalate),... 

Figure 3 Chemical structure of poly(lactic-co-glycolic) acid polymer. The x component represents lactic acid and y component represents glycolic acid. For other poly(hydroxy acids), the side-chain methyl group is replaced by other alkyl groups.

Giizel, Y. (1996) Investigation of the relationship between the inhibitory activity of glycolic acid oxidase and its chemical structure electron-topological approach./. Mol. Struct., 366,131-137. 

The polyesters of lactic acid and glycolic acid have the chemical structures ... 

Structurally, BZ is 3-quinuclidinyl benzilate, today known to neuropharmacologists as QNB, a research standard for measuring central antimus-carinic activity.2930 The code name BZ is probably derived from benzilate, a molecular member of the larger chemical family known as glycolates (glycolic acid esters). BZ is a stable (environmentally persistent), crystalline solid, which makes it suitable for dissemination by heat-producing (thermal) munitions. 

Fig. 5.5 Chemical structures of dantrolene, a muscle relaxant (a) monocycUne, abroad-spectrum tetracyclin antibiotic (b) docosahexaenoic add, a arachidonic acid oxidation inhibitor (c) and polyethylene glycol (d)...

FIGURE 8.8 Chemical structure of soft and hard segments of PEAs based on poly(ethylene glycol), 1,4-butanediol, and a diamide-diester constituted by 1,4-butanediamine and adipic acid units. 

---