单词 | polyvinylidene |
释义 | polyvinylidenen. Chemistry. I. Compounds. 1. In the names of substances which are polymers of compounds containing a vinylidene group C=CH2. a. polyvinylidene chloride n. any of a class of resinous polymers of vinylidene chloride in which the repeating unit is the group —CH2—CCl2—, and which have a wide range of applications, esp. as impact- and chemical-resistant films and fibres; abbreviated PVDC. ΘΚΠ the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > polyvinyls > named polyvinyl acetate1927 polyvinyl alcohol1927 polyvinyl acetal1933 vinyl resin1934 polyvinylidene chloride1940 polyvinyl butyral1941 polyvinylidene1941 polyvinyl pyrrolidone1945 povidone1955 society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > synthetic resin > specific synthetic resins coumarone resin1900 novolak1909 glyptal1915 marblette1927 Vinylite1929 polyolefin1930 polysulphone1934 urea resin1937 melamine resin1939 polyurethane1939 polyvinylidene chloride1940 polyvinyl butyral1941 polyimide1945 Teflon1945 Araldite1946 polytetrafluoroethylene1946 epoxy resin1950 urethane1956 Maraglas1962 tartan1964 alkyd1984 1940 Chem. Rev. 26 163 Natta and Rigamonti..found..polyvinylidene chloride to be quite highly crystalline. 1964 Discovery Oct. 17/1 The lamination consists of an aluminum foil and three plastic films—one of polythene, another of polyvinylidene chloride and a third of polyester. 1990 New Age Jrnl. June 34/2 Cling wraps are made from one of three plastic polymer ‘building blocks’: polyvinyl chloride (PVC),..polyethylene,..and polyvinylidene chloride (PVDC). b. polyvinylidene fluoride n. a tough, thermally stable, highly crystalline, thermoplastic polymer having a repeating unit —CH2—CF2—, with similar uses to polyvinylidene chloride and also (because of its piezoelectric properties) used to make flexible transducers; abbreviated PVDF. ΘΚΠ the world > matter > chemistry > polymer chemistry > polymers > [noun] > types (other miscellaneous) photopolymer1932 polyvinylidene fluoride1954 biopolymer1957 ionene1969 1954 Jrnl. Amer. Chem. Soc. 76 3436/2 Hydrogen fluoride..is produced at the greatest rate from the polyvinylidene fluoride. 1973 Materials & Technol. VI. viii. 547 Because of its resistance to chemicals, polyvinylidene fluoride is used for tubes, valves, and pumps in the chemical industry. 1995 Sci. Amer. Sept. 124/3 Piezoelectric polymers, such as polyvinyldene fluoride (PVDF), are commonly exploited for sensing because they can be formed in thin films and bonded to many kinds of surfaces. II. Simple uses. 2. Any of the synthetic resins which are made by polymerizing compounds containing the vinylidene group C=CH2. Frequently attributive. ΘΚΠ the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > polyvinyls > named polyvinyl acetate1927 polyvinyl alcohol1927 polyvinyl acetal1933 vinyl resin1934 polyvinylidene chloride1940 polyvinyl butyral1941 polyvinylidene1941 polyvinyl pyrrolidone1945 povidone1955 the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > polyvinyls > named > polymers of vinylidene compounds polyvinylidene1972 1941 Plastics 5 249/2 (caption) Flow sheet showing production of polyvinylidene polymers from petroleum and brine. 1960 Times Rev. Industry Sept. 65/3 The tendency seems to be for polythene yarns to replace some of the earlier types such as polyvinylidene. 1963 A. J. Hall Student's Handbk. Textile Sci. ii. 18 (table) Polyvinyls and polyvinylidenes. 1972 Homes & Gardens Mar. 107 One firm has now introduced a full gloss emulsion paint based on a polyvinyledene medium. 2000 Proc. National Acad. Sci. U.S.A. 97 14633/1 The pellet was washed.., transferred to polyvinylidene membranes, and immunoblotted. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1940 |
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