Production of organometallic polymers by the interfacial technique. XXII. Synthesis of poly[alkylene(arylene)oxystannanes] using a new modified system

Published on Feb 18, 1972in Macromolecular Chemistry and Physics 2.49
· DOI :10.1002/macp.1972.021520109
Charles E. Carraher13
Estimated H-index: 13
(University of South Dakota),
Gary A. Scherubel3
Estimated H-index: 3
(University of South Dakota)
Abstract
Poly[alkylene(arylene)oxystannanes] of the form below have been synthesized from dichlorostannanes and diols using a modified nonaqueous interfacial system consisting of acetonitrile and hydrocarbons. The products are preferentially capped with alcohol end-groups. Poly[alkylen(arylen)oxystannane] der folgenden Struktur wurden durch Grenzflachenpolykondensation von Dichlorstannen mit Diolen hergestellt. Dabei wurden modifizierte wasserfreie Losungsmittelsysteme aus Acetonitril und Kohlenwasserstoffen verwendet. Die Polymeren haben alkoholische Endgruppen.
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Published on Nov 22, 2015in International Journal of Polymeric Materials 2.13
Charles E. Carraher7
Estimated H-index: 7
(Florida Atlantic University),
Michael R. Roner19
Estimated H-index: 19
(University of Texas at Arlington)
+ 7 AuthorsZamil Islam1
Estimated H-index: 1
(Florida Atlantic University)
The efforts described in this article are aimed at designing organotin polymers that control the growth of breast cancer and to identify structure/property relationships that assist in this goal. The growth of MCF-7 and MDA-MB-231 breast cancer cell lines is inhibited employing a wide range of organotin condensation polymers. The EC50 values are primarily dependent on the nature of the Lewis base but the CI50 is dependent on both the nature of the Lewis base and Lewis acid. A number of products ...
4 Citations Source Cite
Charles E. Carraher7
Estimated H-index: 7
(Florida Atlantic University),
Girish Barot11
Estimated H-index: 11
(Florida Atlantic University)
+ 1 AuthorsMichael R. Roner19
Estimated H-index: 19
(University of Texas at Arlington)
The effect of solvent on the ability to inhibit a group of cell lines was studied employing a series of water-soluble dibutyltin polyethers derived from various hydroxyl-terminated poly(ethylene glycols). Molecular weight as a function of time was essentially unchanged for a period of 30 weeks for the polyethers. Variations in test media can affect biological activities on the cell level as well as at the molecular level. The current study involves the evaluation of the cellular effects when dim...
10 Citations Source Cite
Charles E. Carraher23
Estimated H-index: 23
(Florida Atlantic University),
Ngoc Trang Caroline Truong2
Estimated H-index: 2
(Florida Atlantic University)
+ 2 AuthorsNancy T. Trang5
Estimated H-index: 5
(University of Texas at Arlington)
Polyether esters were rapidly formed employing the interfacial condensation of Group VA triphenylmetal dihalides with glycyrrhetinic acid in moderate yield and chain length. Infrared spectroscopy shows the formation of metal–oxygen bonds. The products are a mixture of bridging and non-bridging structures about the metal atom. Proton NMR and MALDI MS results are consistent with the formation of the polyether esters. Some of the polymers exhibit inhibition of the growth of pancreatic cancer cell l...
8 Citations Source Cite
Published on May 1, 1983in Journal of Macromolecular Science, Part A 1.06
Charles E. Carraher8
Estimated H-index: 8
(Wright State University),
Timothy J. Gehrke2
Estimated H-index: 2
(Wright State University)
+ 2 AuthorsH. M. Molloy1
Estimated H-index: 1
(Wright State University)
Abstract The modification of dextran, a water-soluble polysaccharide, through condensation with organostannane halides was accomplished utilizing the interfacial technique. Structural analysis agreed with condensation of the dextran-hydroxyls forming tin ether linkages with the dextran. Thermal degradation occurs through several stability plateaus and in air occurs through an oxidative pathway(s). Some of the products inhibit bacteria commonly responsible for mildew and rot.
6 Citations Source Cite
Charles E. Carraher7
Estimated H-index: 7
(Florida Atlantic University),
Michael R. Roner19
Estimated H-index: 19
(University of Texas at Arlington)
+ 6 AuthorsMohammed H. Al-huniti4
Estimated H-index: 4
(Florida Atlantic University)
The efforts described in this paper are aimed at designing organotin polymers that control the growth of various cancers; here colorectal cancer and to identify structure/property relationships that will assist in this goal. The growth of colorectal cancer is affected employing a wide range of organotin condensation polymers. The EC50 values are primarily dependent on the nature of the Lewis base but the CI50 value is dependent on both the nature of the Lewis base and Lewis acid. EC50 values dow...
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Published on Oct 21, 2009in Materials 2.47
Charles E. Carraher23
Estimated H-index: 23
(Florida Atlantic University),
Michael R. Roner19
Estimated H-index: 19
Organotin polyethers are easily synthesized employing interfacial polymerization systems involving the reaction of hydroxyl-containing Lewis bases and organotin halides. A wide variety of organotin-containing polymeric products have been synthesized including those derived from natural and synthetic polymers such as lignin, xylan, cellulose, dextran, and poly(vinyl alcohol). Others have been synthesized employing known drug diols such as dicumarol, DES, and dienestrol and a wide variety of synth...
24 Citations Source Cite
Charles E. Carraher23
Estimated H-index: 23
(Florida Atlantic University),
Michael R. Roner19
Estimated H-index: 19
(University of Texas at Arlington)
+ 2 AuthorsGirish Barot11
Estimated H-index: 11
(Florida Atlantic University)
Organotin polyethers containing the synthetic estrogen diethylstilbestrol have been made in moderate yield with chain lengths ranging from 20 to 200 repeat units employing the interfacial polycondensation procedure. Infrared spectroscopy shows the absence of the O–H group and formation of the Sn–O linkage consistent with the formation of the polyether. F-MALDI MS results are consistent with the presence of organotin-containing fragmentation clusters containing one and two tin atoms and ion fragm...
23 Citations Source Cite
Charles E. Carraher23
Estimated H-index: 23
(Florida Atlantic University),
Michael R. Roner19
Estimated H-index: 19
(University of Texas at Arlington)
+ 6 AuthorsMohammed H. Al-huniti4
Estimated H-index: 4
(Florida Atlantic University)
The current efforts described in this paper are aimed at developing compounds that inhibit the growth of prostate cancer and to identify structure/property relationships that will further assist us towards this goal. The growth of prostate cancer is affected employing a wide range of organotin condensation polymers. The EC50 values are primarily dependant on the nature of the Lewis base but the CI50 is dependent on both the nature of the Lewis base and Lewis acid. EC50 values down to the picogra...
9 Citations Source Cite
Published on May 1, 1975in British Polymer Journal
Charles E. Carraher13
Estimated H-index: 13
(University of South Dakota),
Samuel T. Bajah3
Estimated H-index: 3
(University of South Dakota)
Synthesis of titanium polyethers was effected via four low temperature polycondensation routes, namely the “normal” interfacial, “inverse” interfacial, aqueous solution and organic solution techniques. The greatest yields were obtained through use of the aqueous solution technique while no or small yields resulted from organic solution systems. Both sodium hydroxide and triethylamine proved to be satisfactory bases. No product was formed when base was not added. Results as a function of base con...
18 Citations Source Cite
Girish Barot11
Estimated H-index: 11
(Florida Atlantic University),
Kimberly Shahi10
Estimated H-index: 10
(University of Texas at Arlington)
+ 1 AuthorsCharles E. Carraher23
Estimated H-index: 23
(Florida Atlantic University)
A series of organotin poly(ethylene glycols) were synthesized including the first water soluble organotin polymers. These products are all polymeric with weight average molecular weights about 105. Infrared spectroscopy shows the presence of moieties from both reactants and the formation of the Sn–O linkage. F MALDI MS shows the presence of up to over a hundred units and by isotopic abundance the presence of one, two, and three tin-containing ion fragments. The polymers inhibit the growth of can...
34 Citations Source Cite