𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and characterization of polymers with a photosensitive group

✍ Scribed by D. Madheswari; K. Subramanian; A.V.Rami Reddy

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
513 KB
Volume
32
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

Copolymers of 4-cinnamoylphenyl methacrvlate with methyl methacrylate were prepared in methyl ethyl ietdne solution using benioyl peroxide as-initiator at 70"6. They were characterized by u.v., i.r., 'H-NMR and '-'C-NMR spectra. Their comoositions were determined bv 'H-NMR techniaue. The reactivity ratios of the monomers were determined by the application of the conventional linearization method suggested by Kelen and Tiidiis. The weight and number average molecular weights of the copolymers were determined by gel permeation chromatography. Thermogravimetric analysis of the copolymers was carried out in air. The glass transition temperatures of the polymers were determined by differential scanning calorimetry.

The photocrosslinking properties were studied by irradiating the polymer thin films with a high-pressure Hg lamp and measuring the changes in U.V. absorption spectra.

📜 SIMILAR VOLUMES

Photosensitive polymers: Synthesis, char
Photosensitive polymers: Synthesis, characterization, and photocrosslinking properties of polymers with pendant α,β-unsaturated ketone moiety
✍ A. V. Rami Reddy; K. Subramanian; A. V. Sesha Sainath 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 226 KB 👁 2 views

Acrylate and methacrylate monomers with the photodimerizable ␣,␤-unsaturated ketone moiety, such as 4-cinnamoylphenyl, 4-(4-methoxycinnamoyl)phenyl, 4-(4-nitrocinnamoyl)phenyl, or 4-(4-chlorocinnamoyl)phenyl, were prepared and homopolymerized using benzoyl peroxide as the initiator at 70°C in methyl

Synthesis and characterization of photos
Synthesis and characterization of photosensitive copolysiloxaneimides
✍ Pukun Zhu; Zuobang Li; Qiang Wang; Wei Feng; Lixin Wang 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 164 KB 👁 2 views

Photosensitive copolysiloxaneimides were prepared by adding a photosensitive monomer such as hydroxyethylacrylate (HEA) to copolyisoimides, which were synthesized by the copolycondensation of pyromellitic dianhydride, benzophenone tetracarboxylic dianhydride with oxydianiline, and bis(p-aminophenoxy

Synthesis and characterization of photos
Synthesis and characterization of photosensitive polysiloxane
✍ F. Sun; S.L. Jiang 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 440 KB

UV-curable polydimethylsiloxane epoxy acrylate (PESA) was synthesized by reacting epoxy polydimethylsiloxane with acrylic acid (AA). It is shown that the optimum synthesis temperature for PESA is 100-110 °C and triethylamine is best one among those catalysts tested. The structure of the oligomer was

Synthesis and characterization of conjug
Synthesis and characterization of conjugated polymers with imino nitroxide groups
✍ Robert Saf; Petra Swoboda; Andreas Lechner; Klaus Hummel; Rainer Czaputa 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 396 KB

## Abstract Two new conjugated polyradicals with imino nitroxide groups, poly[2‐(3,4‐diethynylphenyl)‐4,4,5,5‐tetramethylimidazolinyl‐1‐oxyl] (3) and poly[2‐(3,5‐diethynylphenyl)‐4,4,5,5‐tetramethylimidazolinyl‐1‐oxyl] (4), were prepared. Spectroscopic methods (IR, UV, ESR, MS) were used for the ch

Synthesis and characterization of coordi
Synthesis and characterization of coordination polymers of polyesters with pendant amino groups
✍ Anjali Bajpai; Sandeep Rai 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB 👁 2 views

Oligomeric polyester, namely, poly(tetramethylene aspartate) (PTMA), was synthesized from D,L-aspartic acid and 1,4-butanediol by a melt-condensation technique. Polyester-metal complexes were synthesized by the reaction of PTMA with hydrated acetates of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II)