| 摘要 |
(Problems) Providing a polymer, a composition and a molded article, which are inexpensive and have great chemical stability and high mechanical strength with no content of halogen elements and less environmental burden during disposal. (Means for Resolution) A copolymer containing at least two or more polymer segments, where at least one polymer segment contains a phosphoryl derivative represented by the following general formula (1) and at least one polymer segment never contains a phosphoryl derivative represented by the following general formula (1): (where R independently represents hydrocarbon, an aromatic ring, hydrogen, a metal ion or onium ion). |
