Use of phosphite amides in the synthesis of polyamides
dc.contributor.author | Šebenda, Jan | en_US |
dc.date.accessioned | 2006-04-28T18:15:01Z | |
dc.date.available | 2006-04-28T18:15:01Z | |
dc.date.issued | 1971-03 | en_US |
dc.identifier.citation | Šebenda, Jan (1971)."Use of phosphite amides in the synthesis of polyamides." Journal of Polymer Science Part A-1: Polymer Chemistry 9(3): 701-716. <http://hdl.handle.net/2027.42/38759> | en_US |
dc.identifier.issn | 0449-296X | en_US |
dc.identifier.issn | 1542-9350 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/38759 | |
dc.description.abstract | The preparation of polyamides by the phosphite amide procedure was investigated. The yield of amidation was determined in the reaction of diethyl- or o -phenylenephosphite derivatives of piperidine, piperazine, or trans -2,5-dimethylpiperazine with either mono- or dicarboxylic acids. Higher yields were obtained by using diethyl phosphite derivatives; however, for both types of derivatives the yields were never greater than 90%. Only low molecular weight polymers could be obtained under optimum reaction conditions. In the polycondensation of (+)- trans -1,3-cyclohexanedicarboxylic acid or (+)- trans -1,2-cyclohexanedicarboxylic acid with phosphite derivatives of either piperazine or trans -2,5-dimethylpiperazine, the optical rotation of the polymers was lower than the rotation of the corresponding polyamides prepared by the interfacial condensation procedure with dicarboxylic acid chlorides. It was shown that an intermediate mixed anhydride was formed during the amidation reaction. This may account for the observed racemization. | en_US |
dc.format.extent | 888505 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | John Wiley & Sons, Inc. | en_US |
dc.subject.other | Physics | en_US |
dc.subject.other | Polymer and Materials Science | en_US |
dc.title | Use of phosphite amides in the synthesis of polyamides | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Chemistry and the Macromolecular Research Center, The University of Michigan, Ann Arbor, Michigan 48104 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/38759/1/150090311_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/pol.1971.150090311 | en_US |
dc.identifier.source | Journal of Polymer Science Part A-1: Polymer Chemistry | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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