CPP (Copolymer Polyol)- Polyurethanes(폴리우레탄)- 개시제(TAPEH) 소개

저희는 유명 독일 화학 업체의 한국 agent이고, CPP (Copolymer Polyol)/Polyurethanes(폴리우레탄)/에 적용가능한  TAPEH라는 개시제를 소개시켜드리려고 합니다.

 

* TAPEH
tert.Amylperoxy-2-ethyl hexanoate
CAS#686-31-7
Liquid, technically pure
Molar mass: 230.3 g/mol

 

* Application :

ETHYLENE:
Initiator for the high-pressure polymerisation of Ethylen in combination withother peroxides of different thermal stability.
Temperature range: 160-210°C.
Particular advantages: liquid, readily miscible with high-boiling aliphatics,highly efficient.

STYRENE:
Initiator for the polymerisation in bulk, solution or suspension.
Temperature range: 80-110°C.
Usage level: 0.1-0.5% as supplied.
Particular advantages: no plasticiser, liquid, therefore easy to dose, high activity. A low residual monomer content can be achieved in combination with other, thermally more stable peroxides.

OTHER MONOMERS:
Initiator for the polymerisation of (meth-)acrylates and allyl-monomers.
Temperature range: 80-120°C.
Usage level: 0.1-1% as supplied.
In combination with thermally more stable peroxides the residual monomer content in the polymer can be reduced.

 

 

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Polymerisation

Radical copolymerisation of Macromer with Styrene and Acrylnitril, using
•AZO‘sAIBN, AMBN or
•OP TAPEH, TAPPI

- AZO state of the art since late 60‘s, OP introduced by DOW (patent) in 90‘s

- AZO‘s technically prefered, but critical due to nitriles as decomposition products
- CPP producers now develop change of process from AZO to OP

=> Amylperoxides prefered because of:
- less„natural grafting“, i.e. hydrogen abstraction from the backbone, particularly from tertiary carbon of PO units
- higher selectivity due to more„correct“ grafting because of„softer“ radicals leads to more in-spec CPP
- less polarity of Amyls

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위에서 보시다시피, 개시제로 사용되는 제품이고 품질적으로나 가격적으로 merit가 있는 제품이기 때문에 소개드립니다.

 

궁금한 점이나 문의 사항 있으면 쪽지나 댓글 부탁드립니다.

 

감사합니다. 

 

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