Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Tin effect in formation and photocross-linking reactions of tri-n-butylstannyl methacrylate-allyl chloroacetate copolymer
Date
1998-09-30
Author
Rzaev, ZMO
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
109
views
0
downloads
Cite This
Radical-initiated copolymerization of tri-n-butylstannyl methacrylate (TBSM) with allyl chloroacetate (ACA) was carried out in the presence of benzoyl peroxide as initiator in benzene at 70 degrees C in nitrogen atmosphere. Monomer reactivity ratios of the TBSM (M-1)-ACA (M-2) monomer pair were determined by the Kelen-Tudos method: r(1) = 1.25 +/- 0.02 and r(2) = 0.13 +/- 0.005. From copolymerization kinetic data the Values of effective energy of activation (E-a) and orders with respect to initiator (n) and to monomers (m), E-a = 79.0 kJ/mol, n = 0.51, and m = 1.2, were determined. Photochemical reactions of the copolymer were studied by using monochromatic W-irradiation at 405 nm and FTIR spectroscopy. For the copolymer synthesized the quantum efficiency (phi(crl) = 0.62 mol/Einstein and photosensitivity S = 25.5 cm(2)/J (in the presence of 1,9-dibromoanthracene as a sensitizer) were found. It was shown that the effects observed of the tin atom and Cl substituent via pentacoordinated complex (-R3Sn...O=C-) and sigma(Cl-CH2)-pi(C=O)-pi(allyl) conjugation, respectively, are the main factors for reducing degradative chain transfer and for increasing the tendency of monomers to alternate as well as for the photocrosslinking of copolymer macromolecules. (C) 1998 John Wiley & Sons, Inc.
Subject Keywords
Organic Chemistry
,
Materials Chemistry
,
Polymers and Plastics
URI
https://hdl.handle.net/11511/63600
Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
DOI
https://doi.org/10.1002/(sici)1099-0518(19980930)36:13<2339::aid-pola21>3.0.co;2-a
Collections
Department of Chemistry, Article
Suggestions
OpenMETU
Core
ELECTROINITIATED POLYMERIZATION OF ACRYLAMIDE BY DIRECT ELECTRON-TRANSFER
HACIOGLU, B; Akbulut, Ural; Toppare, Levent Kamil (Wiley, 1989-10-01)
Electroinitiated polymerization of acrylamide was carried out in acetonitrile–tetrabutylammonium fluoroborate by electrolytic reduction of monomer. It was shown by cyclic voltammetry that direct electron transfer from the cathode to the monomer can be achieved in this solvent–electrolyte system. Reduction peak potentials measured by cyclic voltammetry indicated that sodium salts will interfere with such a mechanism. Since the reduction peak potential of sodium salt and dimethylformamide are found to be lowe...
Preparation of conductive polybenzoxazines by oxidative polymerization
Kiskan, Baris; Yagci, Yusuf; Sahmetlioglu, Ertugrul; Toppare, Levent Kamil (Wiley, 2007-03-15)
precursors were prepared by oxidative polymerization 3-phenyl-3,4-dihydro-2H-benzo[e][1,3] oxazine (P-a) alone and in the presence of thiophene (Th) with ceric ammonium nitrate in acetonitrile. The structure of the precursors was confirmed by FTIR, H-1 NMR, and DSC measurements, indicating the presence of a cyclic benzoxazine structure, together with small but varying amount of a ring opened phenolic structure. The resulting polymers exhibit conductivities around 10(-2) S cm(-1) and undergo thermal curing a...
Polymerization and dipole moment of poly(allyl cyanide)
Küçükyavuz, Zühal; Usanmaz, Ali; Testereci, Şenay (Elsevier BV, 1990-9)
Polymerization of allyl cyanide was carried out by radiation and chemical catalysis. Polymers obtained by γ-rays under various conditions such as in bulk and in the presence of either air or 0.1 mol% ZnCl2 were oily or solid dark-brown products with molecular weights up to 1.4 × 104. The polymers obtained by n-BuLi was a pale-yellow solid, insoluble in common organic solvents and water. No polymer was obtained with BF3O(C2H5)2. The mechanism of polymerization was shown by infra-red investigation to be diffe...
Complex-radical cyclocopolymerization of allyl a-(N-maleimido)acetate with styrene and maleic anhydride
Rzaev, ZMO; Salamova, UU; Altindal, S (Wiley, 1997-08-01)
Radical copolymerizations of allyl alpha-(N-maleimido)acetate (AMI) with styrene (D, electron-donor) or maleic anhydride (A, electron-acceptor) were carried out in benzene and/or methyl ethyl ketone (MEK) at 50-70 degrees C in the presence of 2,2'-azoisobutyronitrile (AIBN) as initiator. The structure and properties of copolymers synthesized were derived from IR, chemical, DTA and TGA analyses. Side-chain unsaturation of macromolecules was also proved by the crosslinking effect observed. Kinetic parameters ...
Fused structures in the polymer backbone to investigate the photovoltaic and electrochromic properties of donoracceptor-type conjugated polymers
CEVHER, ŞEVKİ CAN; UNLU, Naime Akbasoglu; OZELCAGLAYAN, Ali Can; APAYDIN, Dogukan Hazar; Udum, Yasemin Arslan; Toppare, Levent Kamil; Çırpan, Ali (Wiley, 2013-05-01)
In this study, two new benzotriazole (BTz) and dithienothiophene (DTT) containing conjugated polymers were synthesized. After successful characterizations of the monomers by proton-nuclear magnetic resonance (1H NMR) and carbon-NMR (13C NMR) techniques, poly(4-(dithieno[3, 2-b:2,3-d]thiophen-2-yl)-2-(2-octyldodecyl)-2H-benzo[d][1,2,3] triazole) P1 and poly(4-(5-(dithieno[3,2-b:2,3-d]thiophen-2-yl)thiophen-2-yl)-2-(2-octyldodecyl)-7-(thiophen-2-yl)-2H-benzo[d][1,2,3]triazole) P2 were synthesized via a typica...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
Z. Rzaev, “Tin effect in formation and photocross-linking reactions of tri-n-butylstannyl methacrylate-allyl chloroacetate copolymer,”
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
, pp. 2339–2345, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63600.