✦ LIBER ✦

Photochemical iodine doping of poly[bis(p-tolylamino)]phosphazene

✍ Scribed by G. Beggiato; G. Casalbore-Miceli; G. Giro; S. Lora

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 179 KB
Volume: 22
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(86)90095-9

No coin nor oath required. For personal study only.

✦ Synopsis

ANtraet--By reacting iodine with poly[bis(p-tolylamino)]phosphazene (PTAP) in methylene chloride, a doped material is obtained; imino side-groups of the macromolecule are complexed to form "inner'" charge-transfer structures. This process is accelerated by irradiating the system with light of a suitable wavelength range (2 >~ 320 nm) and the doped material can be easily separated and purified as a brown powder. Solid samples of more than 4 5% doped PTAP are unstable and gradually lose iodine to attain this limiting doping level. Stable samples of 4% doped PTAP have a specific conductivity a of about 3 x 10 ~4 sec cm ~. two orders greater than that of the undoped polymer.

📜 SIMILAR VOLUMES

Photochemical behavior of poly(organopho

Photochemical behavior of poly(organophosphazenes). I. Poly[bis(p-tolylamino)]phosphazene

✍ Pietro Bortolus; Francesco Minto; Giancarlo Beggiato; Silvano Lora 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 369 KB 👁 1 views

Effects of 60Co gamma rays on poly[bis(p

Effects of 60Co gamma rays on poly[bis(p-tolylamino)Phosphazene]

✍ G. Beggiato; P. Bordin; F. Minto; L. Busulini 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 302 KB

A~traet--The behaviour of poly-[bis(p-tolylamino)phosphazenc] under ~'°('o gamma irradiation was investigated in chloroform, carbon tetrachloride, benzene, toluene and tetrahydrofuran. Viscositx. average molecular weights and spectral changes were used to follow the degradation. The degradation mech

Polymorphism of poly[bis(p-methoxyphenox

Polymorphism of poly[bis(p-methoxyphenoxy)phosphazene]

✍ Tadakazu Miyata; Toru Masuko; Morio Kojima; Joseph H. Magill 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 597 KB

## Abstract Well characterized poly[bis(__p__‐methoxyphenoxy)phosphazene] (PB(4‐MeO)PP) has been investigated employing X‐ray diffraction and differential scanning calorimetry (DSC). The DSC heating scan of the original PB(4‐MeO)PP specimen exhibits one exotherm at 110°C and two endotherms at 106°C

Photoconductive properties of poly(bis(2

Photoconductive properties of poly(bis(2-naphthoxy)phosphazene) doped with trinitrofluorenone

✍ P.G. Di Marco; G. Giro; M. Gleria; S. Lora 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 401 KB

Photochemical behaviour of poly(organoph

Photochemical behaviour of poly(organophosphazenes)—Part VIII. Further investigations on the sensitized photochemistry of poly[bis(4-isopropylphenoxy)phosphazene]

✍ M. Gleria; F. Minto; P. Bortolus; W. Porzio; S.V. Meille 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 475 KB

The photochemistry of poly[bis(4-isopropylphenoxy)phosphazene] (PIPP) sensitized by hexakis(4-benzoylphenoxy)cyclophosphazene and by poly[bis(4-benzoylphenoxy)phosphazene] was investigated both in solution and in film. Air-equilibrated CH2CI 2 solutions of this polymer, also containing the above-men

Photochemical behavior of poly(organopho

Photochemical behavior of poly(organophosphazenes)—XIII. Sensitized photochemistry of poly[bis(4-benzylphenoxy)phosphazene] in solution and in film

✍ Mario Gleria; Francesco Minto; Luca Fambri; Alessandro Pegoretti 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 735 KB

In this paper we report the solution and solid-state photochemistry of poly[bis(4benzylphenoxy)phosphazene] sensitized by benzophenone. U.V. and Cr. spectroscopic characterizations and weight average molecular weight data indicate that the main reaction under irradiation for this polymer dissolved i