Soluble conjugatedpolymerswereobtained inthe presence ofPd(II),Pt(II)andRh(I) complexes frommonosubstituted acetylene 3-dimethylamino-1-propyne (H–C CCH2N(CH3)2, 1) and the corresponding hydrochloride (H–C CCH2N(CH3)2·HCl, 2) and hydrobromide (H–C CCH2N(CH3)2·HBr, 3) derivatives. A series of reactionswere performed to achieve the optimization of the polymerization conditions.Thehighest yieldswere foundforpolymers synthesized usingPd(II)bisacetylides specially prepared, i.e. trans-[Pd(PPh3)2(C CCH2N(CH3)2)2], trans-[Pd(PPh3)2(C CCH2N(CH3)2)2HCl] and trans-[Pd(PPh3)2(C CCH2N(CH3)2)2HBr], respectively. The dimension and size distribution of the polymers were investigated using dynamic light scattering. Polymers containing quaternary ammonium groups showed evidence of a hydrodynamic radius of about 300 nm if prepared with the Rh(I) catalyst and of 160 nm if prepared with the Pd(II) catalysts. Polymers obtained from 1 showed smaller hydrodynamic radius compared to polymers obtained from 2 and 3, regardless the polymerization catalyst. The ionic polymericmaterials were soluble in organic solvents and, more interestingly, in water. The formation of nanoparticles with pearl-like morphology was achieved using a recently developed osmosis-based method, with dimensions varying from 60 nm up to micrometres. c 2011 Society of Chemical Industry

Venditti, I., Ilaria, F., Battocchio, C., Giovanni, P., Cesare, C., MARIA VITTORIA RUSSO, (2011). Soluble polymers of monosubstituted acetylenes with quaternary ammonium pendant groups. Structure and morphology. POLYMER INTERNATIONAL, 60, 1222-1229 [10.1002/pi.3066].

Soluble polymers of monosubstituted acetylenes with quaternary ammonium pendant groups. Structure and morphology

IOLE VENDITTI;BATTOCCHIO, CHIARA;
2011-01-01

Abstract

Soluble conjugatedpolymerswereobtained inthe presence ofPd(II),Pt(II)andRh(I) complexes frommonosubstituted acetylene 3-dimethylamino-1-propyne (H–C CCH2N(CH3)2, 1) and the corresponding hydrochloride (H–C CCH2N(CH3)2·HCl, 2) and hydrobromide (H–C CCH2N(CH3)2·HBr, 3) derivatives. A series of reactionswere performed to achieve the optimization of the polymerization conditions.Thehighest yieldswere foundforpolymers synthesized usingPd(II)bisacetylides specially prepared, i.e. trans-[Pd(PPh3)2(C CCH2N(CH3)2)2], trans-[Pd(PPh3)2(C CCH2N(CH3)2)2HCl] and trans-[Pd(PPh3)2(C CCH2N(CH3)2)2HBr], respectively. The dimension and size distribution of the polymers were investigated using dynamic light scattering. Polymers containing quaternary ammonium groups showed evidence of a hydrodynamic radius of about 300 nm if prepared with the Rh(I) catalyst and of 160 nm if prepared with the Pd(II) catalysts. Polymers obtained from 1 showed smaller hydrodynamic radius compared to polymers obtained from 2 and 3, regardless the polymerization catalyst. The ionic polymericmaterials were soluble in organic solvents and, more interestingly, in water. The formation of nanoparticles with pearl-like morphology was achieved using a recently developed osmosis-based method, with dimensions varying from 60 nm up to micrometres. c 2011 Society of Chemical Industry
Venditti, I., Ilaria, F., Battocchio, C., Giovanni, P., Cesare, C., MARIA VITTORIA RUSSO, (2011). Soluble polymers of monosubstituted acetylenes with quaternary ammonium pendant groups. Structure and morphology. POLYMER INTERNATIONAL, 60, 1222-1229 [10.1002/pi.3066].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/121049
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