✦ LIBER ✦

Cationic Copolymerization of 1,3-Pentadiene with Isoprene

✍ Scribed by Peng, Yuxing; Wang, Juhong; Liu, Jialin; Dai, Hansong; Cun, Linfeng

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 251 KB
Volume: 39
Category: Article
ISSN: 0959-8103
DOI: 10.1002/(sici)1097-0126(199601)39:1<63::aid-pi450>3.0.co;2-2

No coin nor oath required. For personal study only.

✦ Synopsis

The cationic copolymerization of 1,3-pentadiene (PD) with isoprene (IP) initiated by AICl, was carried out in toluene. The microstructure of the copolymer chain was characterized by IR and 'H NMR. IP is incorporated in the copolymer chain mainly in cyclic segments. The PD-IP copolymer has a much higher cyclic content than the P D homopolymer, which shows that the cyclization reaction during PD polymerization is enhanced by the addition of IP. In addition, the reactivity ratios for IP(M,) and PD(M,) determined by the Kelen-Tudos method from low-conversion data are r I = 1.22 and rz = 1.09.

K e y words: 1

📜 SIMILAR VOLUMES

Cationic copolymerization of 1,3-pentadi

Cationic copolymerization of 1,3-pentadiene with 1,3-cyclopentadiene

✍ Yu Xing Peng; Han Song Dai; Lin Feng Cun; Jia Lin Liu 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 1 views

Copolymerizations of 1,3-pentadiene (PD) with 1,3-cyclopentadiene (CPD) initiated by aluminium trichloride were carried out in toluene. The addition of CPD in the PD polymerization system does not affect the molecular weight but greatly increases the softening point of the polymer due to the introdu

Cationic copolymerization of 1,3-pentadi

Cationic copolymerization of 1,3-pentadiene with endo-dicyclopentadiene

✍ Yu Xing Peng; Han Song Dai; Lin Feng Cun 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 152 KB 👁 2 views

Copolymerizations of 1,3-pentadiene (PD) with endo-dicyclopentadiene (DCPD) initiated by aluminum trichloride were carried out in toluene. The addition of DCPD in the PD polymerization system does not affect the molecular weight but increases greatly the softening point of the polymer due to the int

Enantioselective Syntheses of Cyclopenta

Enantioselective Syntheses of Cyclopentanoid Compounds from Isoprene and trans-1,3-Pentadiene

✍ Dipl.-Chem. Kai.-U. Baldenius; Prof. Dr. Heindirk tom Dieck; Prof. Dr. Wilfried 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 410 KB

Effect of benzylic halides on cationic p

Effect of benzylic halides on cationic polymerization of 1,3-pentadiene

✍ Y. X. Peng; Y. J. Dong; J. L. Liu; H. S. Dai; L. F. Cun 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 251 KB 👁 2 views

Bulk copolymerization of phenylacetylene

Bulk copolymerization of phenylacetylene with methacrylonitrile and with isoprene

✍ C. I. Simionescu; B. C. Simionescu; C. Mihăilescu 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB

Copolymerization of styrene with (Z)-1,3

Copolymerization of styrene with (Z)-1,3-pentadiene in the presence of a syndiotactic-specific catalyst

✍ Pasquale Longo; Antonio Proto; Patrizia Oliva; Irene Sessa; Adolfo Zambelli 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 123 KB 👁 2 views

Copolymerization of styrene with (Z )-1,3-pentadiene affords copolymers mostly containing 1,2 pentadiene units. Both the styrene and the pentadiene units are in syndiotactic arrangement but the comonomer sequence distribution is far from bernoullian. Interestingly, the behavior of (Z )-1,3-pentadien