Improved syntheses of poly(oxy-1,3-phenylenecarbonyl-1,4-phenylene) and related poly(ether-ketones) using polyphosphoric acid/P2O5 as polymerization medium

Polymer

Volumn 44, Issue 15, 2003, Pages 4135-4147

  Baek, Jong Beom ^a   Tan, Loon Seng ^b  

^a UNIVERSITY OF DAYTON RESEARCH INSTITUTE   (United States)

^b AIR FORCE RESEARCH LABORATORY   (United States)

Author keywords

AB monomer; Poly(ether ketones); Poly(phosphoric acid)

Indexed keywords

MOLECULAR WEIGHT; ORGANIC ACIDS; POLYMERIZATION; SYNTHESIS (CHEMICAL);

POLYPHOSPHORIC ACID;

POLYETHER ETHER KETONES;

3 PHENOXYBENZOIC ACID; 4 PHENOXYBENZENESULFONIC ACID; BENZOIC ACID DERIVATIVE; MESYLIC ACID; PHOSPHORUS PENTOXIDE; POLY(ETHER KETONE); POLY(OXY 1,3 PHENYLENECARBONYL 1,4 PHENYLENE); POLYETHERSULFONE; POLYMER; POLYPHOSPHATE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL COMPOSITION; MOLECULAR MODEL; MOLECULAR WEIGHT; POLYMERIZATION; SYNTHESIS; TEMPERATURE DEPENDENCE;

POLYETHERETHERKETONE; SYNTHESIS;

EID: 0037932045     PISSN: 00323861     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0032-3861(03)00374-4     Document Type: Article

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32. 2 < sulfuric acid, HO(O=S=O)OH, then the order of basicity (oxygen lone-pair electrons) should be reversed: carbonyl > phosphoryl > sulfonyl. Thus, it would not be a surprise that poly(phosphoric acid) cannot protonate the sulfonyl group to the same extent as it does the carbonyl group