SYNTHESIS OF HYDROXYLATED SEGMENTED POLYURETHANES

被引：1

作者：

MARCONI, W

BARONTINI, P

MARTINELLI, A

PIOZZI, A

机构：

[1] Chemical Department, University of Rome La Sapienza

来源：

EUROPEAN POLYMER JOURNAL | 1992年 / 28卷 / 05期

关键词：

D O I：

10.1016/0014-3057(92)90119-M

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis of a hydroxylated polyurethane, by reduction with diborane of the corresponding carboxylated polymer, is described. The starting polyurethane, of the segmented type, contains as chain extender dihydroxymethylpropionic acid. Various conditions for hydrogenation of the carboxy group have been investigated, and it was possible to transform quantitatively carboxy into hydroxymethyl groups, without hydrogenolytic reactions affecting the main chain of the polymer. The obtained polymer was characterized by chemical titration, viscometry, i.r., NMR and DSC.

引用

页码：465 / 469

页数：5

共 13 条

[1] BIOMEDICAL APPLICATIONS OF FIBER-ENTRAPPED ENZYMES [J].

BARTOLI, F ;

GIOVENCO, S ;

LOSTIA, O ;

MARCONI, W ;

MORISI, F ;

PITTALIS, F ;

PROSPERI, G ;

SPOTORNO, G ;

BALSANO, F ;

CORDOVA, C ;

MUSCA, A .

PHARMACOLOGICAL RESEARCH COMMUNICATIONS, 1977, 9 (06) :521-546

[2] SELECTIVE REDUCTIONS .15. REACTION OF DIBORANE IN TETRAHYDROFURAN WITH SELECTED ORGANIC COMPOUNDS CONTAINING REPRESENTATIVE FUNCTIONAL GROUPS [J].

BROWN, HC ;

HEIM, P ;

NUNGMINY. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1970, 92 (06) :1637-&

[3] HYDROBORATION .27. HYDROBORATION OF 1-BUTENYL AND RELATED VINYL DERIVATIVES CONTAINING REPRESENTATIVE SUBSTITUENTS . AN UNUSUALLY POWERFUL DIRECTIVE INFLUENCE OF ETHOXY SUBSTITUENT [J].

BROWN, HC ;

SHARP, RL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1968, 90 (11) :2915-+

[4] ADSORPTION OF PLASMA-PROTEINS TO THE DERIVATIVES OF POLYETHERURETHANEUREA CARRYING TERTIARY AMINO-GROUPS IN THE SIDE-CHAINS [J].

ITO, Y ;

SISIDO, M ;

IMANISHI, Y .

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1986, 20 (08) :1139-1155

[5] ANTITHROMBOGENIC SURFACES - CHARACTERIZATION AND BIOACTIVITY OF SURFACE IMMOBILIZED PGE1-HEPARIN CONJUGATE [J].

JACOBS, HA ;

OKANO, T ;

KIM, SW .

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1989, 23 (06) :611-630

[6]

KAZMIERCZAK ME, 1989, J POLYM SCI POL LETT, V27, P2137

[7] DIRECT SYNTHESIS OF CARBOXYLATED POLYURETHANES [J].

MARCONI, W ;

MARTINELLI, A ;

PIOZZI, A ;

ZANE, D .

EUROPEAN POLYMER JOURNAL, 1991, 27 (02) :135-139

[8]

MARCONI W, 1979, T AM SOC ART INT ORG, V25, P280

[9]

MARCONI W, 1977, 4TH ENZ C BAD NEUENH

[10] NEW ANTITHROMBOGENIC HEPARINIZED POLYMER [J].

MIYAMA, H ;

HARUMIYA, N ;

MORI, Y ;

TANZAWA, H .

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1977, 11 (02) :251-265

← 1 2 →