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Table 1 Synthesis of block copolymers by TERP

From: Control of adhesive strength of acrylate polymers containing 1-isobutoxyethyl and isobornyl esters in response to dual stimuli for dismantlable adhesion

Code

First-step polymerization

Second-step polymerization

iBEA/IBoAa

Time (h)

Conversion of iBEA/IBoA (%)

M n/104

M w/M n

2EHA/HEAa

Time (h)

Conversion of iBEA/IBoA/2EHA/HEAb (%)

B1

1050/0

9

58/–

2.3

1.16

1650/300

13

66/0/65/80

B2

600/300

22

59/25

3.1

1.31

2200/300

8

75/31/62/69

  1. Polymerization conditions: [AMVN]/[AIBN] = 1.4/1.0 in the molar ratio to the DPDT and iBEA/anisole = 1/1 in weight at 60 °C. The homopolymerization of iBEA or the copolymerization of iBEA and IBoA was carried out during the first-step polymerization, and then 2EHA and HEA were added to synthesize the block copolymers during the second-step polymerization
  2. a Molar ratio to DPDT
  3. b The conversions for iBEA and IBoA indicate the total values of the first- and second-step polymerizations