✦ LIBER ✦

Thermal stability of syndiotactic polypropene

✍ Scribed by Hideharu Mori; Tomoyuki Hatanaka; Minoru Terano

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 235 KB
Volume: 18
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.1997.030180213

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Thermal stability of syndiotactic polypropene (syn‐PP) was investigated by comparison with isotactic polypropene (iso‐PP). Heat treatments were carried out in air at 160–220°C for 10–30 min. Under these conditions, molecular weight and molecular weight distribution of syn‐PP were almost kept constant, indicating the high stability of syn‐PP. Iso‐PP was degraded drastically under the same conditions. Thus, it is confirmed that the stereoregularity is one of the dominant factors to determine the stability of PP.

📜 SIMILAR VOLUMES

Solid-state structure of thermally cryst

Solid-state structure of thermally crystallized syndiotactic polystyrene

✍ K. Hodge; T. Prodpran; N. B. Shenogina; S. Nazarenko 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 446 KB 👁 2 views

Thermal stability of Peroxynitrates

✍ F. Kirchner; A. Mayer–Figge; F. Zabel; K. H. Becker 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 292 KB 👁 1 views

Peroxynitrates are thermally unstable intermediates (at ambient temperatures) in the atmospheric degradation of hydrocarbons. In this work, thermal lifetimes of nine peroxynitrates have been measured as a function of temperature and, for two of them, also, as a function of total pressure. In the pre

Thermal Stability of Nanomaterials

✍ R. A. Andrievskii 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 47 KB

Thermal stability of polyhydroxyalkanoat

Thermal stability of polyhydroxyalkanoates

✍ F. Carrasco; D. Dionisi; A. Martinelli; M. Majone 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 154 KB 👁 1 views

Thermal stability of vaccines

✍ Duane T. Brandau; Latoya S. Jones; Christopher M. Wiethoff; Jason Rexroad; C. Ru 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB

Worldwide vaccination programs against infectious diseases and toxins are estimated to save approximately 3 million lives yearly. Tragically, however, another 3 million individuals (primarily children) die of vaccine-preventable diseases. A significant portion of this problem results from the therma

Blends of Syndiotactic Polystyrene and I

Blends of Syndiotactic Polystyrene and Isotactic Polypropene Prepared Using a Ziegler-Natta Catalyst Containing a Novel Donor

✍ Demin Xu; Jun Wang; Zhongyang Liu; Yucai Ke; Youliang Hu 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 270 KB 👁 2 views