High molecular weight phosphazene copolymers having chemical functions inside chiral pockets formed by (R)-(1,1′-binaphthyl-2,2′-dioxy)phosphazene units

被引：22
作者：
Carriedo, GA [1 ]
Alonso, FJG [1 ]
Presa-Soto, A [1 ]
机构：
[1] Univ Oviedo, Fac Quim, Dept Quim Organ & Inorgan, E-33071 Oviedo, Spain
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2003年 / 24期
关键词：
polymers; polyphosphazenes; ligand effects; chirality;
D O I：
10.1002/ejic.200300407
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The polyphosphazene {[NPCl2](x)[NP(O2C20H12)](1-x)}(n) (O2C20H12 = 1,1'-binaphthyl-2,2'-dioxy) reacted in refluxing THF in the presence of Cs2CO3 with HOC5H4N or para-substituted phenols HOC6H4R to give the random copolymers I[NP(OC5H4N)(2)](x)[NP(O2C20H12)](1-x)}(n) (1) or {[NP(OC6H4R)(2)](x) -[NP(O2C20H12)](1-x)}(n), [R = CN (2), COMe (3), CO(2)nPr (4), PPh2 (5)] and with H(2)NnBu to give ([NP(NHnBu)(2)](x)[NP-(O2C20H12)](1-x)}(n). (6). The reaction of the polymer {[NPCl2](x)-[NP(O2C20H10Br2)](1-x)}(n). (O2C20H10Br2 = 6,6'-dibromo-1,1'-binaphthyl-2,2'-dioxy) with HOC6H4PPh2 and CS2CO3 gave {[NP(OC6H4PPh2)(2)]x[NP(O2C20H10Br2)](1-x)}(n) (7). Those polymers have a very high glass -transition temperature (Tg) and a chemical function or ligand that is in the interior of a chiral pocket. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).
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页码：4341 / 4346
页数：6
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