PRACTICAL ASPECTS OF POLYMERIZATION OF D,L-LACTIDE INITIATED WITH TETRAPHENYLTIN

被引：6
|
作者：
MEHTA, S
RAGHUVANSHI, RS
MISRA, A
GANGA, S
TALWAR, GP
机构：
[1] National Institute of Immunology, New Delhi, 110067, Aruna Asaf Ali Marg
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 1995年 / 58卷 / 09期
关键词：
D O I：
10.1002/app.1995.070580911
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Melt polymerization conditions for D,L-Lactide initiated with tetraphenyltin were studied with regard to polymer molecular weight. The combined effect of time and temperature on polymer molecular weight and degree of conversion of D,L-Lactide is described. Polymerization at constant initiator concentrations resulted in a narrow scattering of reproducible molecular weight values. The presence of air/moisture and other impurities during the melt polymerization most likely have a deterimental effect on molecular weight. After a short induction period the rather slow polymerization of D,L-Lactide resulted in a maximal molecular weight followed by an almost constant value of molecular weight. (C) 1995 John Wiley & Sons, Inc.
引用
收藏
页码：1495 / 1499
页数：5
相关论文
共 50 条
  • [31] Polymerization of lactones and D,L-lactide initated by lanthanum isopropoxide.
    Save, M
    Soum, A
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2001, 221 : U319 - U319
  • [32] Rapid ring-opening polymerization of D,L-lactide by microwaves
    Zhang, C
    Liao, LQ
    Liu, LJ
    MACROMOLECULAR RAPID COMMUNICATIONS, 2004, 25 (15) : 1402 - 1405
  • [33] Mechanism of Propagation in the Cationic Polymerization of L,L-Lactide
    Basko, Malgorzata
    Kubisa, Przemyslaw
    JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2008, 46 (23) : 7919 - 7923
  • [34] GRAFTING POLYMERIZATION OF L-LACTIDE ON HYDROXYAPATITE NANOPARTICLES
    Song, Xiao-feng
    Ling, Feng-guang
    Chen, Xue-si
    ACTA POLYMERICA SINICA, 2013, (01): : 95 - 101
  • [35] Polymerization and Characterization of Functionalized Poly(L-Lactide)
    Jin, Yushun
    Xiao, Fei
    Guo, Wenli
    ECO-MATERIALS PROCESSING AND DESIGN X, 2009, 620-622 : 595 - 598
  • [36] Anionic and ionic coordinative polymerization of L-lactide
    Stere, C
    Iovu, M
    Boborodea, A
    Vasilescu, DS
    Fazakas-Anca, IS
    POLYMERS FOR ADVANCED TECHNOLOGIES, 1998, 9 (06) : 322 - 325
  • [37] Modeling of L-lactide Polymerization by Reactive Extrusion
    Banu, Ionut
    Puaux, Jean-Pierre
    Bozga, Grigore
    Nagy, Iosif
    MACROMOLECULAR SYMPOSIA, 2010, 289 : 108 - 118
  • [38] POLYLACTONES .23. POLYMERIZATION OF RACEMIC AND MESO D,L-LACTIDE WITH VARIOUS ORGANOTIN CATALYSTS STEREOCHEMICAL ASPECTS
    KRICHELDORF, HR
    BOETTCHER, C
    TONNES, KU
    POLYMER, 1992, 33 (13) : 2817 - 2824
  • [39] COPOLYMERS OF L-LACTIDE AND D,L-LACTIDE WITH 6-CAPROLACTONE - SYNTHESIS AND CHARACTERIZATION
    PEREGO, G
    VERCELLIO, T
    BALBONTIN, G
    MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS, 1993, 194 (09): : 2463 - 2469
  • [40] Kinetics and mechanism of cyclic esters polymerization initiated with tin(II) octoate.: Polymerization of ε-caprolactone and L,L-lactide co-initiated with primary amines
    Kowalski, A
    Libiszowski, J
    Biela, T
    Cypryk, M
    Duda, A
    Penczek, S
    MACROMOLECULES, 2005, 38 (20) : 8170 - 8176
12345