PREPARATION OF POLYMERS WITH POLYCARBONATE SEQUENCES AND THEIR DEPOLYMERIZATION - AN EXAMPLE OF THERMODYNAMIC RECYCLING

被引：18

作者：

KEUL, H ^{[1
]}

MULLER, AJ ^{[1
]}

HOCKER, H ^{[1
]}

SYLVESTER, G ^{[1
]}

SCHON, N ^{[1
]}

机构：

[1] BAYER AG,ZENT BEREICH FORSCH & ENTWICKLUNG,W-5600 WUPPERTAL 1,GERMANY

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1993年 / 67卷

关键词：

D O I：

10.1002/masy.19930670123

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Initiators based on hydroxytelechelic polyethylene oxide, polytetrahydrofuran and polydimethylsiloxane were used for the anionic ring-opening polymerization of 2.2-dimethyltrimethylene carbonate (DTC). Under suitable conditions high yields of block copolymers of the AB and ABA types were obtained, depending on the initiator used. Ring-closing depolymerization of poly(2.2-dimethyltrimethylene carbonate) [poly(DTC)] and of copolymers containing poly(DTC) blocks with catalysts based on potassium or tin results under suitable conditions in DTC.

引用

页码：289 / 298

页数：10

共 15 条

[1]

BUSCHMANN HJ, 1986, MAKROMOL CHEM, V187, P423

[2] SYNTHESIS AND REACTIONS OF POLYTETRAHYDROFURAN WITH THIOLANIUM END GROUPS [J].

DHAESE, F ;

GOETHALS, EJ .

BRITISH POLYMER JOURNAL, 1988, 20 (02) :103-108

[3]

HOVESTADT W, 1990, MAKROMOL CHEM-RAPID, V11, P271

[4]

JEUCK H, 1982, MAKROMOL CHEM-RAPID, V3, P121

[5]

KEUL H, 1986, MAKROMOL CHEM, V187, P2579

[6]

KRAFT R, 1980, MAKROMOL CHEM-RAPID, V1, P363

[7]

KUHLING S, 1992, MAKROMOL CHEM, V193, P1207

[8]

Muller A., UNPUB

[9] LITHIUM AND POTASSIUM ALCOHOLATES OF POLY(ETHYLENE GLYCOL)S AS INITIATORS FOR THE ANIONIC-POLYMERIZATION OF 2,2-DIMETHYLTRIMETHYLENE CARBONATE - SYNTHESIS OF AB AND ABA BLOCK COPOLYMERS [J].

MULLER, AJ ;

KEUL, H ;

HOCKER, H .

EUROPEAN POLYMER JOURNAL, 1991, 27 (12) :1323-1330

[10]

MULLER AJ, IN PRESS EUR POLYM J

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