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103,889 Newest Publications about the topic synthesis

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Synthesis and properties of bifunctional oligoethers. I. Chiral oligomers from propylene oxide

01-Jan-1986 | Jun, C. L.; Leborgne, A.; Spassky, N., Journal of Polymer Science: Polymer Symposia, 1986

Abstract Racemic or chiral bifunctional oligoethers of the type H—(O—CH(CH3)—CH2—)n—Cl, n = 4‐10, have been prepared by reacting racemic or optically active propylene oxide with teiraphenyl porphyrin (TPPH2)—AlEt2Cl initiator sysfem. The synthesized products were characterized by IR, elemental ...

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Synthesis of acetylene‐terminated monomers using a polymer‐supported palladium catalyst

01-Jan-1986 | Trumbo, D. L.; Marvel, C. S., Journal of Polymer Science: Polymer Symposia, 1986

Abstract A single‐crysial polyethylene‐bound palladium catalys: was prepared and used in the synthesis of acelylene‐terminated monomers.

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Polvnucleotide analogs with PEI or PEI/polyethyloxazoline backbones

01-Jan-1986 | Ludwick, A. G.; Robinson, K. S.; McCloud Jr., J., Journal of Polymer Science: Polymer Symposia, 1986

Abstract The synthesis and characterization of uracil‐ and thy mine‐containing polynucleotide analogs with a linear polyethylenimine backbone is described. Hypochromicity is observed for these analogs in DMSO and in DMSO/H2O solutions and found lo increase as the percent water increases. The ...

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Synthesis of poly (vinylcatechols)

01-Jan-1986 | Daly, William H.; Moulay, Saad, Journal of Polymer Science: Polymer Symposia, 1986

Abstract Five vinylcatechol precursors have been synthesized by either alcohol dehydration or Wittig coupling techniques. Dehydration of the appropriate sec‐phenethyl alcohol is the most efficient synthetic approach: the following monomers (yields) are reported: 5‐vinyl‐1,3‐benzodioxole, I ...

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Polvnucleotide analogs with PEI or PEI/polyethyloxazoline backbones

01-Jan-1986 | Ludwick, A. G.; Robinson, K. S.; McCloud Jr., J., Journal of Polymer Science: Polymer Symposia, 1986

Abstract The synthesis and characterization of uracil‐ and thy mine‐containing polynucleotide analogs with a linear polyethylenimine backbone is described. Hypochromicity is observed for these analogs in DMSO and in DMSO/H2O solutions and found lo increase as the percent water increases. The ...

more

Synthesis of poly (vinylcatechols)

01-Jan-1986 | Daly, William H.; Moulay, Saad, Journal of Polymer Science: Polymer Symposia, 1986

Abstract Five vinylcatechol precursors have been synthesized by either alcohol dehydration or Wittig coupling techniques. Dehydration of the appropriate sec‐phenethyl alcohol is the most efficient synthetic approach: the following monomers (yields) are reported: 5‐vinyl‐1,3‐benzodioxole, I ...

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Synthesis and characterization of main‐chain polyaminimides

01-Jan-1986 | Salamone, J. C.; Richard, R. E.; Watterson, A. C., Journal of Polymer Science: Polymer Symposia, 1986

Abstract Three novel main‐chain polyarninimides were prepared containing rigid and/or flexible groups within the backbone. The polymer precursors were initially synthesized from bis‐dimethylhydrazides and dihalides at room temperature through the Menschulkin reaction, which yielded hydrazinium ...

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Synthesis and properties of bifunctional oligoethers. I. Chiral oligomers from propylene oxide

01-Jan-1986 | Jun, C. L.; Leborgne, A.; Spassky, N., Journal of Polymer Science: Polymer Symposia, 1986

Abstract Racemic or chiral bifunctional oligoethers of the type H—(O—CH(CH3)—CH2—)n—Cl, n = 4‐10, have been prepared by reacting racemic or optically active propylene oxide with teiraphenyl porphyrin (TPPH2)—AlEt2Cl initiator sysfem. The synthesized products were characterized by IR, elemental ...

more

Synthesis of acetylene‐terminated monomers using a polymer‐supported palladium catalyst

01-Jan-1986 | Trumbo, D. L.; Marvel, C. S., Journal of Polymer Science: Polymer Symposia, 1986

Abstract A single‐crysial polyethylene‐bound palladium catalys: was prepared and used in the synthesis of acelylene‐terminated monomers.

more

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