Synthesis and characterization of polyurethane aqueous dispersions based on poly(ethylene glycol) and poly(propylene glycol) block copolymers

被引：7

作者：

Coutinho, Fernanda M. B. ^{[1
]}

Delpech, Marcia C. ^{[1
]}

Santos, Cristiane C. ^{[1
]}

Almeida, Rosilea B. L. ^{[1
]}

机构：

[1] Univ Estado Rio de Janeiro, Inst Quim, BR-20559900 Rio De Janeiro, Brazil

来源：

QUIMICA NOVA | 2008年 / 31卷 / 06期

关键词：

polyurethane; aqueous dispersions; non-polluting systems;

D O I：

10.1590/S0100-40422008000600030

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Non-polluting polyurethane aqueous dispersions, with 40% of solids content, were synthesized based on block copolymers of poly(ethylene glycol) and poly(propylene glycol) (PEG-b-PPG), with PEG hydrophilic segments content of 7 and 25%, poly(propylene glycol) (PPG), dimethylolpropionic acid (DMPA). isophorone diisocyanate (IPDI), and hydrazine. Different formulations were synthesized by varying the equivalent-grams ratios between isocyanate and hydroxyl groups (NCO/OH) and PPG and (PEG-b-PPG). The presence of high amounts of PEG in the formulations provoked the formation of gels. Average particle size and viscosity of the dispersions were determined. Mechanical properties and water absorption resistance of cast films were evaluated.

引用

页码：1437 / 1443

页数：7

共 50 条

[1] Synthesis and characterization of amphiphilic block polymer poly(ethylene glycol)-poly(propylene carbonate)-poly(ethylene glycol) for drug delivery
Li, Hongchun
Niu, Yongsheng
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2018, 89 : 160 - 165
[2] Synthesis and characterization of triblock copolymers of methoxy poly(ethylene glycol) and poly(propylene fumarate)
Behravesh, E
Shung, AK
Jo, S
Mikos, AG
BIOMACROMOLECULES, 2002, 3 (01) : 153 - 158
[3] Synthesis of mesoporous silica by templating of amphiphilic poly (ethylene glycol)-block-poly (propylene glycol)-block-poly(ethylene glycol)
Cui, XG
Cho, WJ
Ha, CS
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2000, 353 : 309 - 316
[4] Synthesis and characterization of a block copolymer consisting of poly(propylene fumarate) and poly(ethylene glycol)
Suggs, LJ
Payne, RG
Yaszemski, MJ
Alemany, LB
Mikos, AG
MACROMOLECULES, 1997, 30 (15) : 4318 - 4323
[5] Synthesis and characterization of a block copolymer consisting of poly(propylene fumarate) and poly(ethylene glycol)
Rice Univ, Houston, United States
Macromolecules, 15 (4318-4323):
[6] POLY 690-Synthesis and characterization of new thermogelling block copolymers consisting of poly[(R)-3-hydroxybutyrate], poly(ethylene glycol), and poly(propylene glycol)
Loh, Xian Jun
Goh, Suat Hong
Li, Jun
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 232
[7] Solubility of naphthalene in aqueous solutions of poly(ethylene glycol)–poly(propylene glycol)–poly(ethylene glycol) triblock copolymers and (2-hydroxypropyl)cyclodextrins
Jiří Horský
Zuzana Walterová
Colloid and Polymer Science, 2005, 283 : 1033 - 1040
[8] Solubility of naphthalene in aqueous solutions of poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) triblock copolymers and (2-hydroxypropyl)cyclodextrins
Horsky, J
Walterová, Z
COLLOID AND POLYMER SCIENCE, 2005, 283 (09) : 1033 - 1040
[9] Synthesis and aggregation of poly(valine)-poly (ethylene glycol) block copolymers
Goh, Sarah L.
Platt, Andrew P.
Rutledge, Katherine E.
Lee, Iris
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2008, 46 (16) : 5381 - 5389
[10] Synthesis and characterization of A-B-A triblock copolymers consisting of poly(L-lactide) and poly(propylene glycol)/poly (ethylene glycol)
Cornell, Caitlin
Davies, Flynt
Schofield, Paula
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013, 245

← 1 2 3 4 5 →