✦ LIBER ✦

Substituent effect of the ester moiety of epoxysuccinates on the polycondensation with diamine

✍ Scribed by Taiqi Liu; Fumio Sanda; Takeshi Endo

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 124 KB
Volume: 38
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(20000201)38:3<504::aid-pola16>3.0.co;2-3

No coin nor oath required. For personal study only.

✦ Synopsis

Di-2,2,2-trichloroethyl cis-epoxysuccinate, di-2-cyanoethyl cis-epoxysuccinate, and di-2-methoxyethyl cis-epoxysuccinate were synthesized, and the substituent effect of the epoxysuccinates on the polycondensation with diamine was studied. The order of reactivities of the epoxysuccinates with m-xylylenediamine was as follows: di-trichloroethyl ester ӷ di-cyanoethyl ester Ͼ di-methoxyethyl ester, such was also confirmed by the model reaction of the epoxysuccinate with benzylamine. 1 H NMR and IR spectroscopic study and ab initio calculation also well explained the reactivity order.

📜 SIMILAR VOLUMES

Polymeric siloxanes with a substituent a

Polymeric siloxanes with a substituent and the spirobenzopyran moiety: Effect of polar substituent on the photochromic properties

✍ Ren Nakao; Norikazu Ueda; Yasuo Abe; Toyokazu Horii; Hiroo Inoue 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB 👁 2 views

Oligomeric polysiloxanes having the spirobenzopyran moiety and various substituents were prepared. The polymers were photochromic; the color changed from colorless to red on U V irradiation and the color faded on visible irradiation or on standing in the dark. The thermal decoloration was depressed

Effects of the t-butyl substituent on th

Effects of the t-butyl substituent on the miscibility of polyarylates with polyamides

✍ B. D. Dean; J. E. Harris 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 278 KB

Novel Ester-Linked Carbohydrate−Peptide

Novel Ester-Linked Carbohydrate−Peptide Adducts: Effect of the Peptide Substituent on the Pathways of Intramolecular Reactions

✍ Ivanka Jeric´; Štefica Horvat 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 350 KB 👁 1 views

Alkyl Substituent Effects on the Conduct

Alkyl Substituent Effects on the Conductivity of Polyaniline

✍ N. A. Zaidi; J. P. Foreman; G. Tzamalis; S. C. Monkman; A. P. Monkman 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 154 KB 👁 2 views

Thermal dissociation behavior of polymer

Thermal dissociation behavior of polymers with hemiacetal ester moieties in the side chain: The effect of structure on dissociation temperature

✍ Hideyuki Otsuka; Hirotada Fujiwara; Takeshi Endo 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 131 KB 👁 2 views

Substituent effects on the solvolysis of

Substituent effects on the solvolysis of 1,1-diphenyl-2,2,2-trifluoroethyl tosylates. Part III. Effects of electron-donating substituents in the fixed aryl moiety

✍ Mizue Fujio; Hyun-Joong Kim; Hiroshi Morimoto; Soo-Dong Yoh; Yuho Tsuno 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 190 KB

The solvolysis rates of 1-aryl-1-(p-methoxyphenyl)-2,2,2-trifluoroethyl and 1-aryl-1-(p-phenoxyphenyl)-2,2,2-trifluoroethyl bromides and chlorides were conductimetrically measured at 25.0 °C in 80% aqueous ethanol. The solvolysis rates of 1-(p-methylphenyl)-fixed series were also set up to analyze t