Chemistry:Dimethylolpropionic acid
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| Names | |
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| Preferred IUPAC name
3-Hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid | |
| Other names
2,2-Bis(hydroxymethyl)propionic acid; Hhmp
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| Identifiers | |
3D model (JSmol)
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| ChEMBL | |
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PubChem CID
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| Properties | |
| C5H10O4 | |
| Molar mass | 134.131 g·mol−1 |
| Melting point | 190 °C (374 °F; 463 K) |
| Hazards | |
| GHS pictograms | 
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| GHS Signal word | Warning |
| H319, H335 | |
| P261, P264, P271, P280, P304+340, P305+351+338, P312, P337+313, P403+233, P405, P501 | |
| Related compounds | |
Related compounds
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Isobutyric acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Dimethylolpropionic acid (DMPA) is a chemical compound that has the full IUPAC name of 2,2-bis(hydroxymethyl)propionic acid and is an organic compound with one carboxyl and two hydroxy groups.[1] It has the CAS Registry Number of 4767-03-7.
Properties
DMPA is an odorless free flowing white crystalline solid and essentially non-toxic. DMPA has two different functional groups hydroxyl and carboxylic acid so the molecule can be used for a wide variety of syntheses. In addition to reaction with other chemicals, DMPA can also react with itself to produce esters via esterification, as one example.
Uses
One key use of DMPA is in the field of coatings and adhesives. It is used as a modifier in the production of anionic Polyurethane dispersions.[2] Solvent soluble binders/resins for coatings can be converted into an aqueous binder with the use of this material. In this case it is reacted with a suitable diisocyanate such as isophorone diisocyanate or TMXDI usually along with other polyols to make a prepolymer.
There is also the possibility of using 2,2-bis(hydroxymethyl)propionic acid for the synthesis of dendrimeric molecules, also known as hyperbranched molecules.[3] When each hydroxyl group is reacted with 2,2-bis (hydroxymethyl) propionic acid, the number of hydroxyl groups present in the molecule doubles. Repeating this reaction step, produces one more shell each time and thus the molecule grows. If at the end the hydroxyl groups are reacted with a bifunctional component, dendrimeric UV binders can be produced, for example. Dendrimeric molecules have low solution viscosities and improved properties.
It has a wide variety of other uses including production of [4] hyperbranched polyesters, waterborne polyesters, waterbased alkyd resins, and aqueous epoxy resins.[5] It has even found use in polyethylene terephthalate fiber production.[6][7] Another use is in the medical field for drug release purposes. In the business world it has been cited as an outstanding growth opportunity[8]
See also
References
- ↑ PubChem. "2,2-Bis(hydroxymethyl)propionic acid" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/78501.
- ↑ Howarth, GA (2003-06-01). "Polyurethanes, polyurethane dispersions and polyureas: Past, present and future" (in en). Surface Coatings International Part B: Coatings Transactions 86 (2): 111–118. doi:10.1007/BF02699621. ISSN 1476-4865.
- ↑ Karakaya, Ceylan; Gündüz, Güngör; Aras, Leyla; Mecidoğlu, İdris A. (2007-07-02). "Synthesis of oil based hyperbranched resins and their modification with melamine-formaldehyde resin" (in en). Progress in Organic Coatings 59 (4): 265–273. doi:10.1016/j.porgcoat.2007.03.004. ISSN 0300-9440.
- ↑ Zhang, Xinli (2011). "Modifications and applications of hyperbranched aliphatic polyesters based on dimethylolpropionic acid" (in en). Polymer International 60 (2): 153–166. doi:10.1002/pi.2930. ISSN 1097-0126.
- ↑ Yang, Kunwu, "Synthetic method of 2,2-dimethylolpropionic acid", CN patent application 105152907, issued 2015-08-18
- ↑ Huang, Zhaosong; Bi, Long; Zhang, Zhenyu; Han, Yisheng (2012-10-01). "Effects of dimethylolpropionic acid modification on the characteristics of polyethylene terephthalate fibers". Molecular Medicine Reports 6 (4): 709–715. doi:10.3892/mmr.2012.1012. ISSN 1791-2997. PMID 22858692.
- ↑ Kaitwade, Nikhil. "How Dimethylolpropionic Acid is used in Drug Release | FMI | Industry news and insights" (in en-US). https://www.fmiblog.com/how-dimethylolpropionic-acid-is-used-in-drug-release/.
- ↑ "Dimethylolpropionic Acid Market (Edition:2020) Outstanding Growth – Henan Tianfu Chemical Co Ltd, Jiangxi Nancheng Hongdu Chemical Technology Development Co Ltd, Shenzhen Vtolo Chemicals Co Ltd". 2020-02-18. https://apnews.com/Wired%20Release/cf00841910e15659903a74a1c68e0e6a.
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